From 604f3d64764270c052cfb43081ec522237bbdb75 Mon Sep 17 00:00:00 2001
From: Ludovic Pouzenc <ludovic@pouzenc.fr>
Date: Fri, 5 May 2017 11:28:51 +0200
Subject: Massive add for all draft stuff to keep it in sync
---
mcastseed/src/Makefile.am | 16 --
mcastseed/src/dgrambuf.c | 583 ----------------------------------------
mcastseed/src/dgrambuf.h | 41 ---
mcastseed/src/dgrambuf_test.c | 50 ----
mcastseed/src/mcastleech.c | 408 ----------------------------
mcastseed/src/mcastseed.c | 472 --------------------------------
mcastseed/src/random_speed_dd.c | 36 ---
mcastseed/src/sockets.c | 303 ---------------------
mcastseed/src/sockets.h | 27 --
9 files changed, 1936 deletions(-)
delete mode 100644 mcastseed/src/Makefile.am
delete mode 100644 mcastseed/src/dgrambuf.c
delete mode 100644 mcastseed/src/dgrambuf.h
delete mode 100644 mcastseed/src/dgrambuf_test.c
delete mode 100644 mcastseed/src/mcastleech.c
delete mode 100644 mcastseed/src/mcastseed.c
delete mode 100644 mcastseed/src/random_speed_dd.c
delete mode 100644 mcastseed/src/sockets.c
delete mode 100644 mcastseed/src/sockets.h
(limited to 'mcastseed/src')
diff --git a/mcastseed/src/Makefile.am b/mcastseed/src/Makefile.am
deleted file mode 100644
index 2f2a735..0000000
--- a/mcastseed/src/Makefile.am
+++ /dev/null
@@ -1,16 +0,0 @@
-## Process this file with automake to produce Makefile.in
-
-AM_CPPFLAGS = -I $(top_srcdir)/lib
-AM_CFLAGS =\
- -Wall \
- -Wextra \
- -pedantic \
- -Wno-format
-
-bin_PROGRAMS = mcastseed mcastleech random_speed_dd
-
-mcastseed_SOURCES = mcastseed.c sockets.c
-mcastleech_SOURCES = mcastleech.c sockets.c dgrambuf.c
-mcastleech_LDADD = $(top_builddir)/lib/libgnu.a
-random_speed_dd_SOURCES = random_speed_dd.c
-
diff --git a/mcastseed/src/dgrambuf.c b/mcastseed/src/dgrambuf.c
deleted file mode 100644
index 5d4c302..0000000
--- a/mcastseed/src/dgrambuf.c
+++ /dev/null
@@ -1,583 +0,0 @@
-/*
- * dgrambuf.c - C datagrams buffer.
- *
- * Copyright 2016 by Ludovic Pouzenc <ludovic@pouzenc.fr>
- */
-#define _GNU_SOURCE /* See feature_test_macros(7) */
-#include "dgrambuf.h"
-
-#include "config.h"
-
-#include <sys/socket.h> /* recvmmsg() _GNU_SOURCE */
-#include <stdlib.h> /* calloc(), free() */
-#include <stdio.h> /* perror() */
-#include <errno.h> /* errno */
-#include <string.h> /* memset() */
-#include <sys/uio.h> /* writev() */
-#include <stdint.h> /* uint8_t, uint64_t */
-#include <signal.h> /* sigaction() */
-#include <unistd.h> /* alarm() */
-#include <limits.h> /* SSIZE_MAX */
-#include "gl_rbtree_list.h" /* Red-Black Tree backed Sorted list, gnulib-tool --import rbtree-list */
-
-struct indexed_uint {
- size_t index;
- unsigned int value;
-};
-
-struct dgrambuf_stats_t {
- uint64_t dgrambuf_read_on_full;
- uint64_t recvmmsg_calls, recv_dgrams, recv_byte;
- uint64_t dgram_invalid, dgram_past, dgram_future, dgram_dup, dgram_end_marker;
- uint64_t writev_calls, write_partial, write_byte;
-};
-
-struct dgrambuf_t {
- /* dgram validation after receive, takes dgram len and a pointer to the start of dgram data
- Must returns dgram seq number or 0 if invalid dgram */
- int (*validate_func)(unsigned int, void *, unsigned int*);
-
- struct dgrambuf_stats_t stats;
- struct sigaction sa_sigalrm;
-
- size_t dgram_slots;
- size_t dgram_max_size;
- size_t dgram_header_size;
-
- size_t iovec_slots;
- struct mmsghdr *msgs;
- struct iovec *iov_recv;
- struct iovec *iov_write; /* malloc'ed array */
-
- struct iovec *partial_write_iov; /* Pointer to an item of iov_write[] */
- size_t partial_write_remaining_iovcnt;
- size_t partial_write_remaining_bytes;
-
- unsigned int dgram_seq_last;
- unsigned int dgram_seq_base;
- unsigned int *dgram_len;
-
- struct indexed_uint *dgram_slot_seq; /* malloc'ed array */
- struct indexed_uint **dgram_read_active_slots; /* malloc'd array of pointers to items of dgram_slot_seq[] */
- size_t dgram_read_active_slots_count;
- struct indexed_uint **dgram_write_active_slots; /* malloc'd array of pointers to items of dgram_slot_seq[] */
- size_t dgram_write_active_slots_count;
-
- gl_list_t dgram_empty_slots;
- gl_list_t dgram_used_slots;
-
- uint8_t *buf; /* malloc-ed 2d byte array : buf[dgram_slots][dgram_max_size] */
-};
-
-void _sigalrm_handler(int signum);
-int _compare_indexed_uint(const void *pa, const void *pb);
-bool _equals_indexed_uint(const void *pa, const void *pb);
-void _update_ordered_seq_numbers(dgrambuf_t dbuf);
-
-#ifndef HAVE_MIN_SIZE_T
-size_t min_size_t(size_t a, size_t b) { return (a<b)?a:b; }
-#endif /*HAVE_MIN_SIZE_T*/
-
-void dgrambuf_set_validate_func(dgrambuf_t dbuf, int (*validate_func)(unsigned int, void *, unsigned int *)) {
- dbuf->validate_func = validate_func;
-}
-
-size_t dgrambuf_get_free_count(const dgrambuf_t dbuf) {
- return gl_list_size(dbuf->dgram_empty_slots);
-}
-
-size_t dgrambuf_get_used_count(const dgrambuf_t dbuf) {
- return gl_list_size(dbuf->dgram_used_slots);
-}
-
-ssize_t dgrambuf_recvmmsg(dgrambuf_t dbuf, int sockfd, int timeout, int *info) {
- uint8_t *dgram_base;
- ssize_t recv_byte;
- size_t i, dgram_index, recv_msg_count, free_count;
- int res;
- unsigned int seq, dgram_len;
- struct sigaction sa_old;
- struct indexed_uint *active_slot;
- gl_list_node_t pos;
-
-
- /* Info ptr is mandatory */
- *info = 0;
-
- /* Validate function is mandatory */
- if ( !dbuf->validate_func ) {
- return -3;
- }
-
- /* Buffer is full, can't receive */
- free_count = dgrambuf_get_free_count(dbuf);
- if ( free_count == 0 ) {
- dbuf->stats.dgrambuf_read_on_full++;
- *info |= DGRAMBUF_RECV_OVERWRITE;
- /*FIXME : this locks everything if buf full + next seq missing*/
- return 0;
- }
-
- /* Initialize recvmmsg() syscall arguments and keep track of active slots */
- for (i=0; i < dbuf->iovec_slots && i < free_count; i++) {
- /* Pop a free slot, ignoring const modifier from gl_list_get_at() */
- dbuf->dgram_read_active_slots[i] = (struct indexed_uint *) gl_list_get_at(dbuf->dgram_empty_slots, 0);
- gl_sortedlist_remove(dbuf->dgram_empty_slots, _compare_indexed_uint, dbuf->dgram_read_active_slots[i]);
-
- dgram_index = dbuf->dgram_read_active_slots[i]->index;
- dbuf->iov_recv[i].iov_base = dbuf->buf + dgram_index * dbuf->dgram_max_size;
- dbuf->iov_recv[i].iov_len = dbuf->dgram_max_size;
-
- memset(dbuf->msgs + i, 0, sizeof(struct mmsghdr));
- dbuf->msgs[i].msg_hdr.msg_iov = dbuf->iov_recv + i;
- dbuf->msgs[i].msg_hdr.msg_iovlen = 1;
- }
- dbuf->dgram_read_active_slots_count = i;
-
- /* Do the syscall with alarm() to circumvent bad behavior in recvmmsg(2) timeout */
- if (timeout) {
- sigaction(SIGALRM, &(dbuf->sa_sigalrm), &sa_old);
- alarm(timeout);
- }
- res = recvmmsg(sockfd, dbuf->msgs, dbuf->dgram_read_active_slots_count, MSG_WAITFORONE, NULL);
- if (timeout) {
- alarm(0);
- sigaction(SIGALRM, &sa_old, NULL);
- }
- dbuf->stats.recvmmsg_calls++;
-
- if (res < 0) {
- if ( errno == EINTR ) {
- recv_msg_count = 0;
- *info |= DGRAMBUF_RECV_EINTR;
- } else {
- perror("recvmmsg()");
- return -1;
- }
- } else {
- recv_msg_count = res;
- }
-
- if (recv_msg_count > 0) {
- dbuf->stats.recv_dgrams += recv_msg_count;
- if ( recv_msg_count == dbuf->dgram_read_active_slots_count ) {
- *info |= DGRAMBUF_RECV_IOVEC_FULL;
- }
- }
-
- /* Check all received messages */
- for (i=0, recv_byte=0; i<recv_msg_count; i++) {
- active_slot = dbuf->dgram_read_active_slots[i];
- dgram_base = dbuf->iov_recv[i].iov_base;
- dgram_len = dbuf->msgs[i].msg_len;
-
- /* dgrambuf_new() adjust iovec_len to prevent overflows on ssize_t*/
- recv_byte += dgram_len;
-
- res = dbuf->validate_func(dgram_len, dgram_base, &seq);
- switch (res) {
- case 1:
- if ( seq < dbuf->dgram_seq_base ) {
- fprintf(stderr, "dgrambuf_recvmmsg(): #%zu past (%u)\n", i, seq);
- dbuf->stats.dgram_past++;
- } else if ( seq >= dbuf->dgram_seq_base + dbuf->dgram_slots ) {
- fprintf(stderr, "dgrambuf_recvmmsg(): #%zu future (%u)\n", i, seq);
- dbuf->stats.dgram_future++;
- *info |= DGRAMBUF_RECV_FUTURE_DGRAM;
- } else {
- active_slot->value = seq;
- pos = gl_sortedlist_search(dbuf->dgram_used_slots, _compare_indexed_uint, active_slot);
- if ( pos != NULL ) {
- fprintf(stderr, "dgrambuf_recvmmsg(): #%zu duplicate (%u)\n", i, seq);
- dbuf->stats.dgram_dup++;
- *info |= DGRAMBUF_RECV_DUPLICATE_DGRAM;
- } else {
- /*fprintf(stderr, "dgrambuf_recvmmsg(): #%zu valid (%u)\n", i, seq);*/
- pos = gl_sortedlist_nx_add(dbuf->dgram_used_slots, _compare_indexed_uint, active_slot);
- if ( pos == NULL ) /*TODO: better oom handling */
- return -4;
- dbuf->dgram_len[active_slot->index] = dgram_len;
- *info |= DGRAMBUF_RECV_VALID_DGRAM;
- continue;
- }
- }
- break;
- case 2:
- fprintf(stderr, "dgrambuf_recvmmsg(): #%zu finalize (%u)\n", i, seq);
- dbuf->stats.dgram_end_marker++;
- dbuf->dgram_seq_last = seq;
- *info |= DGRAMBUF_RECV_FINALIZE;
- break;
- default:
- fprintf(stderr, "dgrambuf_recvmmsg(): #%zu invalid\n", i);
- dbuf->stats.dgram_invalid++;
- break;
- }
- /* In all invalid dgram cases, put back active_slot in dgram_free_slots */
- pos = gl_sortedlist_nx_add(dbuf->dgram_empty_slots, _compare_indexed_uint, active_slot);
- if ( !pos ) /*TODO: better oom handling */
- return -4;
- }
-
- /* Push remaining active slots in dgram_empty_slots */
- for (/*next i*/; i < dbuf->dgram_read_active_slots_count; i++) {
- active_slot = dbuf->dgram_read_active_slots[i];
- pos = gl_sortedlist_nx_add(dbuf->dgram_empty_slots, _compare_indexed_uint, active_slot);
- if ( !pos ) /*TODO: better oom handling */
- return -4;
- }
-
- dbuf->dgram_read_active_slots_count = 0;
- dbuf->stats.recv_byte += recv_byte;
-
- return recv_byte;
-}
-
-int dgrambuf_have_data_ready_to_write(dgrambuf_t dbuf) {
- unsigned int next_dgram_seq;
-
- /* Last write was partial, so there is more to write */
- if ( dbuf->partial_write_remaining_bytes ) {
- return 1;
- }
-
- /* dgram_used_slots is empty, nothing to write */
- if ( dgrambuf_get_used_count(dbuf) == 0 ) {
- return 0;
- }
-
- /* Nothing to write if next dgram is not in buffer at all */
- next_dgram_seq = ((struct indexed_uint *) gl_list_get_at(dbuf->dgram_used_slots, 0))->value;
- /*fprintf(stderr, "DEBUG : dgram_seq_base==%u next_dgram_seq == %u\n", dbuf->dgram_seq_base, next_dgram_seq);*/
- if ( next_dgram_seq != dbuf->dgram_seq_base ) {
- return 0;
- }
- /* At least some data of one dgram is availble for writing out */
- return 1;
-}
-
-int dgrambuf_have_received_everything(dgrambuf_t dbuf) {
- /*FIXME : Really implement this */
- return dbuf->dgram_seq_last && ( dbuf->dgram_seq_base - 1 == dbuf->dgram_seq_last );
-}
-
-ssize_t dgrambuf_write(dgrambuf_t dbuf, int fd, int *info) {
- size_t dgram_index, i, vlen, total, len, remain, used_count;
- unsigned int curr_seq, prev_seq, dgram_len;
- ssize_t nwrite;
- struct iovec *iov;
- struct indexed_uint *active_slot;
- bool pos;
-
- /* FIXME Info ptr is mandatory */
- *info = 0;
-
- if ( dbuf->partial_write_remaining_bytes ) {
- /* Previous writev() was partial, continue it */
- iov = dbuf->partial_write_iov;
- vlen = dbuf->partial_write_remaining_iovcnt;
- total = dbuf->partial_write_remaining_bytes;
- } else if ( ! dgrambuf_have_data_ready_to_write(dbuf) ) {
- return 0; /* XXX Inline code ? */
- } else {
- /* Prepare a write batch, buffer state is in dgram_seq_numbers */
- iov = dbuf->iov_write;
- total = 0;
-
- /* Initialize iovecs for writev, take dgram payloads following the sequence numbers */
- prev_seq = 0;
- used_count = dgrambuf_get_used_count(dbuf);
- for (i = 0; i < dbuf->iovec_slots && i < used_count; i++) {
- /* Pop a used slot */
- dbuf->dgram_write_active_slots[i] = (struct indexed_uint *) gl_list_get_at(dbuf->dgram_used_slots, 0);
- gl_sortedlist_remove(dbuf->dgram_used_slots, _compare_indexed_uint, dbuf->dgram_write_active_slots[i]);
- dbuf->dgram_write_active_slots_count++;
-
- curr_seq = dbuf->dgram_write_active_slots[i]->value;
-
- /* Skip empty dgram slot */
- if ( curr_seq == 0 ) {
- fprintf(stderr, "Oops : found empty slot (i==%zu)\n", i);
- continue;
- }
- /* Skip if current dgram is a dup of the previous */
- if ( curr_seq == prev_seq ) {
- fprintf(stderr, "Oops : found duplicated dgram in buffer (%u)\n", curr_seq);
- continue;
- }
- /* Skip dgram comming from the past */
- if ( curr_seq < dbuf->dgram_seq_base ) {
- fprintf(stderr, "Oops : found dgram from past in buffer (%u)\n", curr_seq);
- continue;
- }
- /* Stop if current seq dgram is missing */
- if ( ( i > 0 ) && (curr_seq > prev_seq+1 ) ) {
- break;
- }
- /* Stop if first dgram to write is not in buffer at all */
- if ( ( i == 0 ) && (curr_seq != dbuf->dgram_seq_base) ) {
- fprintf(stderr, "Oops : nothing to write, missing %u seq\n", dbuf->dgram_seq_base);
- break;
- }
-
- /* Normal case : curr_seq is the next dgram to write */
- dgram_index = dbuf->dgram_write_active_slots[i]->index;
- dgram_len = dbuf->dgram_len[dgram_index] - dbuf->dgram_header_size;
-
- /* Setup iovecs */
- dbuf->iov_write[i].iov_len = dgram_len;
- dbuf->iov_write[i].iov_base = dbuf->buf
- + dgram_index*dbuf->dgram_max_size + dbuf->dgram_header_size;
-
- /* Update counters */
- total += dgram_len;
- prev_seq = curr_seq;
- dbuf->dgram_seq_base = curr_seq + 1;
- }
- vlen = i;
-
- /* Nothing valid to write out (but buffer not empty, missing the next dgram) */
- if ( vlen == 0 ) {
- fprintf(stderr, "Oops : nothing to write at all\n");
- return -2;
- }
-
- if ( vlen == dbuf->iovec_slots ) {
- *info |= DGRAMBUF_WRITE_IOVEC_FULL;
- }
- }
-
- nwrite = writev(fd, iov, vlen);
- dbuf->stats.writev_calls++;
- if ( nwrite < 0 ) {
- /* Treat non fatal errors */
- if ( errno == EAGAIN || errno == EWOULDBLOCK || errno == EINTR) {
- /* Keeps some state informations for retry */
- dbuf->partial_write_remaining_bytes = total;
- dbuf->partial_write_remaining_iovcnt = vlen;
- dbuf->partial_write_iov = iov;
- *info |= DGRAMBUF_WRITE_EWOULDBLOCK_OR_EINTR;
- return 0;
- }
- /* Print fatal errors and bail out */
- perror("writev()");
- return -1;
- }
-
- dbuf->partial_write_remaining_bytes = total - nwrite;
- if ( nwrite > 0 ) {
- dbuf->stats.write_byte += nwrite;
- *info |= DGRAMBUF_WRITE_SUCCESS;
-
- if ( dbuf->partial_write_remaining_bytes ) {
- /* If the write was partially done */
- *info |= DGRAMBUF_WRITE_PARTIAL;
- dbuf->stats.write_partial++;
- /* Find the partially written iov and update it */
- remain = nwrite;
- for (i=0; i<vlen; i++) {
- len = dbuf->iov_write[i].iov_len;
- if ( remain < len ) {
- dbuf->partial_write_remaining_iovcnt = vlen - i;
- if ( dbuf->partial_write_iov ) {
- dbuf->partial_write_iov += i;
- } else {
- dbuf->partial_write_iov = dbuf->iov_write + i;
- }
-
- dbuf->iov_write[i].iov_base =
- (uint8_t *) dbuf->iov_write[i].iov_base + remain;
- dbuf->iov_write[i].iov_len -= remain;
- break;
- }
- remain -= len;
- }
- if ( i == vlen ) {
- fprintf(stderr, "Fatal : failed to find partial iov after partial write\n");
- return -3;
- }
-
- } else {
- /* Full write has happened */
- for (i=0; i<dbuf->dgram_write_active_slots_count; i++) {
- active_slot = (struct indexed_uint *) dbuf->dgram_write_active_slots[i];
- active_slot->value = 0;
- pos = gl_sortedlist_nx_add(dbuf->dgram_empty_slots, _compare_indexed_uint, active_slot);
- if ( !pos ) /*TODO: better oom handling ? */
- return -4;
- }
- dbuf->dgram_write_active_slots_count = 0;
- /* Wipe outdated partial_* values */
- dbuf->partial_write_iov = NULL;
- dbuf->partial_write_remaining_iovcnt = 0;
- }
- }
-
- return nwrite;
-}
-
-int dgrambuf_stats(dgrambuf_t dbuf, char **allocated_string) {
- uint64_t dgram_pending = dgrambuf_get_used_count(dbuf);
- uint64_t dgram_missing = 0;
- if ( dbuf->dgram_seq_last ) {
- dgram_missing = dbuf->dgram_seq_last - (dbuf->dgram_seq_base - 1) - dgram_pending;
- }
-
- return asprintf(allocated_string,
- "dgrambuf_read_on_full==%d "
- "recvmmsg_calls==%d, recv_dgrams==%d, recv_byte==%d, "
- "dgram_invalid==%d, dgram_past==%d, dgram_future==%d, dgram_dup==%d, dgram_end_marker==%d, "
- "writev_calls==%d, write_partial==%d, write_byte==%d "
- "dgram_pending==%d, dgram_missing==%d",
- dbuf->stats.dgrambuf_read_on_full,
- dbuf->stats.recvmmsg_calls, dbuf->stats.recv_dgrams, dbuf->stats.recv_byte,
- dbuf->stats.dgram_invalid, dbuf->stats.dgram_past, dbuf->stats.dgram_future, dbuf->stats.dgram_dup, dbuf->stats.dgram_end_marker,
- dbuf->stats.writev_calls, dbuf->stats.write_partial, dbuf->stats.write_byte,
- dgram_pending, dgram_missing
- );
-}
-
-dgrambuf_t dgrambuf_new(size_t dgram_slots, size_t dgram_max_size, size_t dgram_header_size, size_t iovec_slots) {
-
- const void **dgram_slot_seq_ptrs = NULL;
- dgrambuf_t dbuf;
- size_t i;
-
- dbuf = calloc(1, sizeof(struct dgrambuf_t));
- if (!dbuf) goto fail0;
-
- dbuf->validate_func = NULL;
- /* Implicit with dbuf = calloc(...)
- memset(&(dbuf->stats), 0, sizeof(struct dgrambuf_stats_t));
- memset(&(dbuf->sa_sigalrm), 0, sizeof(struct sigaction));
- */
- dbuf->sa_sigalrm.sa_handler = _sigalrm_handler;
-
- dbuf->dgram_slots = dgram_slots;
- dbuf->dgram_max_size = dgram_max_size;
- dbuf->dgram_header_size = dgram_header_size;
-
- /* writev() and dgrambuf_recvmmsg accumulates read/write bytes in ssize_t */
- iovec_slots = min_size_t(iovec_slots, SSIZE_MAX/dgram_max_size);
- dbuf->iovec_slots = iovec_slots;
-
- dbuf->msgs = calloc(iovec_slots, sizeof(struct mmsghdr));
- if (!dbuf->msgs) goto fail1;
-
- dbuf->iov_recv = calloc(iovec_slots, sizeof(struct iovec));
- if (!dbuf->iov_recv) goto fail2;
-
- dbuf->iov_write = calloc(iovec_slots, sizeof(struct iovec));
- if (!dbuf->iov_write) goto fail3;
-
- /* Implicit with dbuf = calloc(...)
- dbuf->partial_write_iov = NULL;
- dbuf->partial_write_remaining_iovcnt = 0;
- dbuf->partial_write_remaining_bytes = 0;
-
- dbuf->dgram_seq_last = 0;
- */
- dbuf->dgram_seq_base = 1;
- dbuf->dgram_len = calloc(dgram_slots, sizeof(unsigned int));
- if (!dbuf->dgram_len) goto fail4;
-
- dbuf->dgram_slot_seq = calloc(dgram_slots, sizeof(struct indexed_uint));
- if (!dbuf->dgram_slot_seq) goto fail5;
- for (i=0; i<dgram_slots; i++) {
- dbuf->dgram_slot_seq[i].index = i;
- }
-
- /* Implicit with dbuf = calloc(...)
- dbuf->dgram_read_active_slots_count = 0;
- */
- dbuf->dgram_read_active_slots = calloc(iovec_slots, sizeof(struct indexed_uint *));
- if (!dbuf->dgram_read_active_slots) goto fail6;
-
- /* Implicit with dbuf = calloc(...)
- dbuf->dgram_write_active_slots_count = 0;
- */
- dbuf->dgram_write_active_slots = calloc(iovec_slots, sizeof(struct indexed_uint *));
- if (!dbuf->dgram_write_active_slots) goto fail7;
-
- dgram_slot_seq_ptrs = calloc(dgram_slots, sizeof(void *));
- for (i=0; i<dgram_slots; i++) {
- dbuf->dgram_slot_seq[i].index = i;
- dgram_slot_seq_ptrs[i] = &(dbuf->dgram_slot_seq[i]);
- }
- if (!dgram_slot_seq_ptrs) goto fail7;
-
- dbuf->dgram_empty_slots = gl_list_nx_create(GL_RBTREE_LIST, _equals_indexed_uint,
- NULL, NULL, false, dgram_slots, dgram_slot_seq_ptrs);
- if (!dbuf->dgram_empty_slots) goto fail8;
-
- free(dgram_slot_seq_ptrs);
- dgram_slot_seq_ptrs=NULL;
-
- dbuf->dgram_used_slots = gl_list_nx_create_empty(GL_RBTREE_LIST, _equals_indexed_uint,
- NULL, NULL, false);
- if (!dbuf->dgram_used_slots) goto fail9;
-
- dbuf->buf = calloc(dgram_slots, dgram_max_size);
- if (!dbuf->buf) goto fail10;
-
- return dbuf;
-
-fail10: gl_list_free(dbuf->dgram_used_slots);
-fail9: gl_list_free(dbuf->dgram_empty_slots);
-fail8: free(dbuf->dgram_write_active_slots);
-fail7: free(dbuf->dgram_read_active_slots);
-fail6: free(dbuf->dgram_slot_seq);
-fail5: free(dbuf->dgram_len);
-fail4: free(dbuf->iov_write);
-fail3: free(dbuf->iov_recv);
-fail2: free(dbuf->msgs);
-fail1: free(dbuf);
-fail0: return NULL;
-}
-
-void dgrambuf_free(dgrambuf_t *dbuf) {
- if (dbuf && *dbuf) {
- free((*dbuf)->buf);
- gl_list_free((*dbuf)->dgram_used_slots);
- gl_list_free((*dbuf)->dgram_empty_slots);
- free((*dbuf)->dgram_write_active_slots);
- free((*dbuf)->dgram_read_active_slots);
- free((*dbuf)->dgram_slot_seq);
- free((*dbuf)->dgram_len);
- free((*dbuf)->iov_write);
- free((*dbuf)->iov_recv);
- free((*dbuf)->msgs);
- free(*dbuf);
- *dbuf = NULL;
- }
-}
-
-void _sigalrm_handler(int signum) {
- /* Nothing to do except interrupting the pending syscall */
- if (signum) {} /* Avoid compiler warning */
-}
-
-int _compare_indexed_uint(const void *pa, const void *pb) {
- const struct indexed_uint *a = pa;
- const struct indexed_uint *b = pb;
- if (a->value < b->value)
- return -1;
- else if ( a->value > b->value )
- return 1;
- else
- return 0;
-/*
- if (a->index < b->index)
- return -1;
- else if (a->index > b->index)
- return 1;
- else
- return 0;
-*/
-}
-
-bool _equals_indexed_uint(const void *pa, const void *pb) {
- const struct indexed_uint *a = pa;
- const struct indexed_uint *b = pb;
- return (a->value == b->value) /*&& (a->index == b->index)*/;
-}
diff --git a/mcastseed/src/dgrambuf.h b/mcastseed/src/dgrambuf.h
deleted file mode 100644
index a83647b..0000000
--- a/mcastseed/src/dgrambuf.h
+++ /dev/null
@@ -1,41 +0,0 @@
-#ifndef DGRAMBUF_H
-#define DGRAMBUF_H
-/*
- * dgrambuf.c - C datagrams buffer.
- *
- * Copyright 2016 by Ludovic Pouzenc <ludovic@pouzenc.fr>
- */
-#include <stdlib.h> /* size_t */
-
-#define DGRAMBUF_RECV_OVERWRITE 1 << 1
-#define DGRAMBUF_RECV_EINTR 1 << 2
-#define DGRAMBUF_RECV_IOVEC_FULL 1 << 3
-#define DGRAMBUF_RECV_FINALIZE 1 << 4
-#define DGRAMBUF_RECV_FUTURE_DGRAM 1 << 5
-#define DGRAMBUF_RECV_DUPLICATE_DGRAM 1 << 6
-#define DGRAMBUF_RECV_VALID_DGRAM 1 << 6
-
-#define DGRAMBUF_WRITE_PARTIAL 1 << 1
-#define DGRAMBUF_WRITE_EWOULDBLOCK_OR_EINTR 1 << 2
-#define DGRAMBUF_WRITE_IOVEC_FULL 1 << 3
-#define DGRAMBUF_WRITE_SUCCESS 1 << 4
-
-typedef struct dgrambuf_t *dgrambuf_t;
-
-dgrambuf_t dgrambuf_new(size_t dgram_slots, size_t dgram_max_size, size_t dgram_header_size, size_t iovec_slots);
-void dgrambuf_free(dgrambuf_t *);
-
-void dgrambuf_set_validate_func(dgrambuf_t dbuf, int (*validate_func)(unsigned int, void *, unsigned int *));
-
-size_t dgrambuf_get_free_count(const dgrambuf_t);
-size_t dgrambuf_get_used_count(const dgrambuf_t);
-int dgrambuf_have_data_ready_to_write(const dgrambuf_t);
-int dgrambuf_have_received_everything(const dgrambuf_t);
-
-int dgrambuf_stats(dgrambuf_t dbuf, char **allocated_string);
-
-/* Warning : dgrambuf_recvmmsg sets and restore SIGALRM handler if timeout != 0 */
-ssize_t dgrambuf_recvmmsg(dgrambuf_t dbuf, int sockfd, int timeout, int *info);
-ssize_t dgrambuf_write(dgrambuf_t dbuf, int fd, int *info);
-
-#endif /* DGRAMBUF_H */
diff --git a/mcastseed/src/dgrambuf_test.c b/mcastseed/src/dgrambuf_test.c
deleted file mode 100644
index 6f9ef22..0000000
--- a/mcastseed/src/dgrambuf_test.c
+++ /dev/null
@@ -1,50 +0,0 @@
-#include "dgrambuf.h"
-
-#define _GNU_SOURCE
-#include <netinet/ip.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/socket.h>
-
-int open_test_socket();
-
-/*
- * Quick'n'dirty bash udp sender
- * while true; do echo $RANDOM > /dev/udp/127.0.0.1/1234; sleep 0.25; done
- */
-
-int main() {
- int res, sockfd, info;
- dgrambuf_t dgb;
-
- sockfd = open_test_socket();
- dgb = dgrambuf_new(3, 50, 8, 8);
-
- do {
- res = dgrambuf_recvmmsg(dgb, sockfd, 1, &info);
- printf("dgrambuf_recvmmsg() => %i\n", res);
- printf("dgrambuf_free_count => %zu\n", dgrambuf_get_free_count(dgb));
- } while ( res > 0 );
- return 0;
-}
-
-int open_test_socket() {
- int sockfd;
- struct sockaddr_in sa;
- sockfd = socket(AF_INET, SOCK_DGRAM, 0);
- if (sockfd == -1) {
- perror("socket()");
- exit(EXIT_FAILURE);
- }
-
- sa.sin_family = AF_INET;
- sa.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
- sa.sin_port = htons(1234);
- if (bind(sockfd, (struct sockaddr *) &sa, sizeof(sa)) == -1) {
- perror("bind()");
- exit(EXIT_FAILURE);
- }
-
- return sockfd;
-}
diff --git a/mcastseed/src/mcastleech.c b/mcastseed/src/mcastleech.c
deleted file mode 100644
index 3345665..0000000
--- a/mcastseed/src/mcastleech.c
+++ /dev/null
@@ -1,408 +0,0 @@
-/*
- * mcastleech.c - Multicast client for huge streams to be piped to other programs (partitions cloning)
- *
- * Copyright 2016 by Ludovic Pouzenc <ludovic@pouzenc.fr>
- *
- * Greatly inspired from examples written by tmouse, July 2005
- * http://cboard.cprogramming.com/showthread.php?t=67469
- */
-#define _GNU_SOURCE /* See feature_test_macros(7) */
-#include "config.h"
-
-#include <unistd.h> /* close() */
-#include <stdio.h> /* fprintf(), stderr */
-#include <stdlib.h> /* EXIT_SUCCESS */
-#include <string.h> /* strncmp() */
-#include <fcntl.h> /* fcntl() */
-#include "sockets.h"
-#include "dgrambuf.h"
-
-#define MTU 1500
-#define MULTICAST_RECV_BUF (MTU-20-8)
-#define MULTICAST_SO_RCVBUF_WANTED 425984
-#define MAX_IOVEC (MULTICAST_SO_RCVBUF_WANTED / MULTICAST_RECV_BUF)
-#define DGRAM_HEADER_SIZE 8
-
-#define DEFAULT_MCAST_IP_STR "ff02::114"
-#define DEFAULT_PORT_STR "9000"
-
-/* Cmdline Arguments */
-char *prog_name = NULL;
-char *mcast_ip = NULL;
-char *port = NULL;
-
-/* Sockets as global, used everywhere, even in die() */
-int mcast_sock = -1; /* Multicast socket for receiving data */
-int ucast_sock = -1; /* Unicast socket for give feedback to server */
-
-/* Buffer used for earch recvfrom() */
-char recvbuf[MULTICAST_RECV_BUF];
-/* Huge ring buffer to absorb consumer speed variations without loosing datagrams */
-dgrambuf_t dgrambuf;
-
-/* Strings to print out representation of various states of the program */
-const char * const state_str[] = {
- "start",
- "wait_hello_and_connect_back",
- "wait_start_and_start_job",
- "receive_data",
- "finalize_job",
- "is_there_more_job"
-};
-
-/* Some boring funcs you didn't want to read now */
-void die(char* msg);
-void usage(char *msg);
-void arg_parse(int argc, char* argv[]);
-void fsm_trace(int state);
-int get_available_mem_kb();
-void set_O_NONBLOCK(int fd, int set);
-void dgrambuf_init();
-int validate_data_dgram(unsigned int nread, void *recvbuf, unsigned int *seq);
-int send_status(int state, int info_r, int info_w);
-
-/* Parts of the "protocol", definitions are after main() */
-int wait_hello_and_connect_back();
-int wait_start_and_start_job();
-int receive_data();
-int finalize_job();
-int is_there_more_job();
-
-int main(int argc, char* argv[]) {
- int state = 1; /* state of the "protocol" state machine */
- int res;
-
- arg_parse(argc, argv);
- dgrambuf_init();
-
- /*XXX Maybe elsewhere, when popen'ing target program */
- set_O_NONBLOCK(1, 1);
-
-/* XXX Dummy */
- fcntl(1, F_SETPIPE_SZ, 4096);
- fprintf(stderr, "pipe_size==%i\n", fcntl(1, F_GETPIPE_SZ));
- /* Finite state machine */
- while ( state > 0 ) {
- fsm_trace(state);
- switch ( state ) {
- case 1: state = (wait_hello_and_connect_back() == 0)?2:1; break;
- case 2: state = (wait_start_and_start_job() == 0)?2:3; break;
- case 3:
- res = receive_data();
- if (res==0) state = 4;
- else if (res==1) state=3;
- else state = -1;
- break;
- case 4: state = (finalize_job() == 0)?5:-2; break;
- case 5: state = (is_there_more_job() == 0)?2:0; break; /* XXX Should retry recv ? */
- }
- }
- fsm_trace(state);
-
- if ( mcast_sock > 0 ) {
- close(mcast_sock);
- mcast_sock = -1;
- }
-
- dgrambuf_free(&dgrambuf);
-
- if ( state < 0 ) {
- return -state;
- }
-
- return EXIT_SUCCESS;
-}
-
-
-int wait_hello_and_connect_back() {
- /* Buffers for host and service strings after resolve */
- char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
- /* Server address, filled by system after first recvfrom */
- struct sockaddr_storage peer_addr;
- socklen_t peer_addr_len;
- /* Various needed variables */
- ssize_t nread;
- int res;
-
- /* Setup mcast_sock */
- if ( mcast_sock > 0 ) {
- close(mcast_sock);
- mcast_sock = -1;
- }
- mcast_sock = mcast_recv_socket(mcast_ip, port, MULTICAST_SO_RCVBUF_WANTED);
- if(mcast_sock < 0) {
- usage("Could not setup multicast socket. Wrong args given ?");
- }
-
- /* Wait for a single datagram from the server (for sync, no check on contain) */
- peer_addr_len = sizeof(struct sockaddr_storage);
- nread = recvfrom(mcast_sock, recvbuf, MULTICAST_RECV_BUF, 0, (struct sockaddr *) &peer_addr, &peer_addr_len);
- if (nread < 0 ) {
- perror("recvfrom() failed");
- return -1;
- }
- /* Get peer informations as strings from peer_addr */
- res = getnameinfo((struct sockaddr *) &peer_addr, peer_addr_len,
- hbuf, NI_MAXHOST, sbuf, NI_MAXSERV, NI_NUMERICSERV);
- if ( res != 0 ) {
- fprintf(stderr, "getnameinfo: %s\n", gai_strerror(res));
- return -2;
- }
- /* Connect back to the server, with reliable unicast */
- if ( ucast_sock > 0 ) {
- close(ucast_sock);
- }
- /* FIXME : ucast_client_socket() use DNS resolver and could block */
- ucast_sock = ucast_client_socket(hbuf,port);
- if(ucast_sock < 0) {
- fprintf(stderr, "Could not setup unicast socket or connect to %s:%s\n", hbuf, port);
- return -3;
- }
-
- return 0;
-}
-
-int wait_start_and_start_job() {
- ssize_t nread, nwrite;
-
- /* Wait for a "start" datagram from the server */
- nread = recvfrom(mcast_sock, recvbuf, MULTICAST_RECV_BUF, 0, NULL, 0);
- if (nread < 0 ) {
- perror("recvfrom() failed");
- return -1;
- }
- if ( nread >= 5 && strncmp("start", recvbuf, 5) == 0 ) {
- /* Reply "ready" through unicast stream socket */
- nwrite = write(ucast_sock, "ready", 5);
- if ( nwrite < 0 ) {
- fprintf(stderr, "write() failed\n");
- return -2;
- }
- if (nwrite != 5) {
- fprintf(stderr, "write() short\n");
- return -3;
- }
-
- return 1;
- }
-
- return 0;
-}
-
-/*
-#define DGRAMBUF_RECV_OVERWRITE 1 << 1
-#define DGRAMBUF_RECV_EINTR 1 << 2
-#define DGRAMBUF_RECV_IOVEC_FULL 1 << 3
-#define DGRAMBUF_RECV_FINALIZE 1 << 4
-#define DGRAMBUF_RECV_VALID_DGRAM 1 << 5
-
-#define DGRAMBUF_WRITE_PARTIAL 1 << 1
-#define DGRAMBUF_WRITE_EWOULDBLOCK_OR_EINTR 1 << 2
-#define DGRAMBUF_WRITE_IOVEC_FULL 1 << 3
-#define DGRAMBUF_WRITE_SUCCESS 1 << 4
-*/
-int receive_data() {
- int info_r, info_w, res;
- ssize_t nread, nwrite;
- static int noop_calls_count = 0;
-
- /* Read (blocking, timeout = 1 sec) */
- nread = dgrambuf_recvmmsg(dgrambuf, mcast_sock, 1, &info_r);
- if ( nread < 0 ) {
- return nread;
- }
-
- /* Write (non-blocking) */
- nwrite = dgrambuf_write(dgrambuf, 1, &info_w);
- if ( nwrite < 0 ) {
- return nwrite;
- }
-
- /*fprintf(stderr, "receive_data(): nread == %zi, nwrite == %zi\n", nread, nwrite);*/
-
- /* XXX Crapy dead state detection */
- if ( nread == 0 /* TEST && nwrite == 0 */ ) {
- if ( noop_calls_count > 10 ) {
- return 0;
- }
- noop_calls_count++;
- } else {
- noop_calls_count = 0;
- }
-
- /* Consider sending status back to seeder */
- res = send_status(1, info_r, info_w);
- if ( res < 0 ) {
- return res;
- }
-
- if ( dgrambuf_have_received_everything(dgrambuf) ) {
- return 0;
- }
- return 1;
-}
-
-
-int finalize_job() {
- ssize_t nwrite;
- int info_w, res;
- char *stats;
-
- /* Don't eat reources in a pooling fashion, blocking IO is fine when no more recv to do */
- set_O_NONBLOCK(1, 0);
-
- /* Flush the whole buffer */
- do {
- nwrite = dgrambuf_write(dgrambuf, 1, &info_w);
- if ( nwrite < 0 ) {
- return nwrite;
- }
- fprintf(stderr, "finalize_job(): nwrite == %zi\n", nwrite);
- } while ( nwrite > 0);
-
- /* Inform the seeder that have have finished */
- res = send_status(2, 0, info_w);
- if ( res < 0 ) {
- return res;
- }
-
- res = dgrambuf_stats(dgrambuf, &stats);
- if ( res != - 1 ) {
- fprintf(stderr, "finalize_job(): dgrambuf_stats : %s\n",stats);
- free(stats);
- }
- return 0;
-}
-
-int is_there_more_job() {
- return 1;
-}
-
-
-
-
-void die(char* msg) {
- fprintf(stderr, "%s\n", msg);
- if (mcast_sock > 0)
- close(mcast_sock);
- if (ucast_sock > 0)
- close(ucast_sock);
- exit(EXIT_FAILURE);
-}
-
-void usage(char *msg) {
- char ubuf[256];
- if ( msg != NULL )
- fprintf(stderr, "%s\n", msg);
- ubuf[0] = '\0';
- snprintf(ubuf, 255, "Usage: %s [port] [mcast_ip]\n", prog_name);
- die(ubuf);
-}
-
-void arg_parse(int argc, char* argv[]) {
- prog_name = argv[0];
- if ( argc > 3 )
- usage("Too many arguments");
- port = (argc >= 2)?argv[1]:DEFAULT_PORT_STR;
- mcast_ip = (argc >= 3)?argv[2]:DEFAULT_MCAST_IP_STR;
-}
-
-void fsm_trace(int state) {
- static int prev_state = 0;
-
- if ( state < 0 ) {
- fprintf(stderr, "Abnormal exit condition %i (from %s)\n", state, state_str[prev_state]);
- } else if ( prev_state != state) {
- if ( state == 0 ) {
- fprintf(stderr, "Normal exit (from %s)\n", state_str[prev_state]);
- } else {
- fprintf(stderr, "Now in %s (from %s)\n", state_str[state], state_str[prev_state]);
- }
- prev_state = state;
- }
-}
-
-int get_available_mem_kb() {
- char key[64];
- int res, value, found=0;
- FILE * fh = fopen("/proc/meminfo", "r");
- if ( fh ) {
- while (!found && !feof(fh)) {
- res = fscanf(fh, "%63s %i kB\n", key, &value);
- if ( res < 0 )
- break;
- found = ( strncmp("MemAvailable:", key, 12) == 0 );
- }
- fclose(fh);
- }
-
- if ( found && value > 0 ) {
- return value;
- }
-
- return 0;
-}
-
-void set_O_NONBLOCK(int fd, int set) {
- int res, flags;
-
- flags = fcntl(fd, F_GETFL);
- if ( flags == -1 ) {
- perror("fcntl(1, F_GETFL)");
- }
- if ( set ) {
- res = fcntl(fd, F_SETFL, flags | O_NONBLOCK);
- } else {
- res = fcntl(fd, F_SETFL, flags & !O_NONBLOCK);
- }
- if ( res == -1 ) {
- perror("fcntl(1, F_SETFL)");
- }
-}
-
-void dgrambuf_init() {
- /* Guess dgrambuf size from global free memory */
- size_t dgram_count;
- int avail_mem = get_available_mem_kb();
-
- if ( avail_mem < MULTICAST_SO_RCVBUF_WANTED ) {
- dgram_count = MULTICAST_SO_RCVBUF_WANTED / MULTICAST_RECV_BUF;
- } else {
- dgram_count = avail_mem / MULTICAST_RECV_BUF / 2 * 1024;
- }
- /* XXX Dummy
- dgram_count = 5;
- */
-
- /* Allocate dgrambuf */
- dgrambuf = dgrambuf_new(dgram_count, MULTICAST_RECV_BUF, DGRAM_HEADER_SIZE, MAX_IOVEC);
- if ( dgrambuf == NULL ) {
- perror("dgrambuf_new/malloc");
- exit(EXIT_FAILURE);
- }
-
- fprintf(stderr, "dgrambuf_get_free_count() => %zu\n", dgrambuf_get_free_count(dgrambuf));
- dgrambuf_set_validate_func(dgrambuf, validate_data_dgram);
-}
-
-int validate_data_dgram(unsigned int nread, void *recvbuf, unsigned int *seq) {
-
- if ( nread < DGRAM_HEADER_SIZE ) {
- return 0;
- }
- if ( strncmp("data", recvbuf, 4) == 0 ) {
- *seq = ntohl( *( (uint32_t *) recvbuf+1 ) );
- return 1;
- }
- if ( strncmp("end:", recvbuf, 4) == 0 ) {
- *seq = ntohl( *( (uint32_t *) recvbuf+1 ) );
- return 2;
- }
- return 0;
-}
-
-int send_status(int state, int info_r, int info_w) {
- if ( state && info_r && info_w ) {}
- /* TODO Implement it */
- return 0;
-}
diff --git a/mcastseed/src/mcastseed.c b/mcastseed/src/mcastseed.c
deleted file mode 100644
index 48f8869..0000000
--- a/mcastseed/src/mcastseed.c
+++ /dev/null
@@ -1,472 +0,0 @@
-/*
- * mcastseed.c - Multicast sender for huge streams to be piped to other programs (partitions cloning)
- *
- * Copyright 2016 by Ludovic Pouzenc <ludovic@pouzenc.fr>
- *
- * Greatly inspired from examples written by tmouse, July 2005
- * http://cboard.cprogramming.com/showthread.php?t=67469
- */
-#define _GNU_SOURCE /* See feature_test_macros(7) */
-#include "config.h"
-
-#include <unistd.h> /* close() */
-#include <stdio.h> /* fprintf(), stderr */
-#include <stdlib.h> /* atoi(), EXIT_SUCCESS */
-#include <string.h> /* strlen() */
-#include <sys/select.h> /* select(), FD_ZERO(), FD_SET() */
-#include "sockets.h"
-
-#define READ_BUF_LEN 256
-#define MAX_PENDING_CONNECTIONS 256
-#define MAX_CLIENTS 256
-#define MTU 1500
-/* Linux IPv6 fragmentation don't output ethernet frames larger than 1470 when MTU==1500 */
-#define MULTICAST_MAX_PAYLOAD_SIZE (MTU-40-8-(14+30))
-
-#define DEFAULT_MCAST_IP_STR "ff02::114"
-#define DEFAULT_PORT_STR "9000"
-#define DEFAULT_MCAST_TTL 1
-
-/* Cmdline Arguments */
-char *prog_name = NULL;
-char *mcast_ip = NULL;
-char *port = NULL;
-int mcast_ttl = 0;
-
-/* Sockets as global, used everywhere, even in die() */
-int mcast_sock = -1; /* Multicast socket for sending data */
-int ucast_sock = -1; /* Unicast socket for havee feedback from clients */
-
-/* Socket related data */
-struct addrinfo *mcast_addr = NULL;
-struct client {
- int sock;
- struct sockaddr addr;
- int state;
-} clients[MAX_CLIENTS];
-int clients_next = 0;
-
-/* Buffer used for earch read() */
-char readbuf[READ_BUF_LEN];
-
-/* Strings to print out representation of various states of the program */
-const char * const state_str[] = {
- "start",
- "send_hello",
- "accept_pending_clients_or_wait_a_bit",
- "start_job",
- "send_data",
- "wait_all_finalize_job",
- "is_there_more_job"
-};
-
-/* Some boring funcs you didn't want to read now */
-void die(char* msg);
-void usage(char *msg);
-void arg_parse(int argc, char* argv[]);
-void fsm_trace(int state);
-void setup_sockets();
-void unsetup_sockets();
-
-/* Parts of the "protocol", definitions are after main() */
-int send_hello();
-int accept_pending_clients_or_wait_a_bit();
-int start_job();
-int send_data();
-int wait_all_finalize_job();
-int is_there_more_job();
-
-int main(int argc, char *argv[]) {
- int state = 1; /* state of the "protocol" state machine */
- int res;
- arg_parse(argc, argv);
- setup_sockets();
-
- /* Finite state machine */
- while ( state > 0 ) {
- fsm_trace(state);
- switch ( state ) {
- case 1: res = send_hello(); state = (res==0)?2:-1; break;
- case 2: res = accept_pending_clients_or_wait_a_bit();
- if (res==0) state = 2; /* Some clients has just come in, try to get more */
- else if (res==1) state = 1; /* Nothing new. Keep accepting clients after another hello */
- else if (res==2) state = 3; /* Wanted clients are accepted */
- else state = -2;
- break;
- case 3: res = start_job();
- if (res==0) state = 3; /* Keep trying to convince every client to start */
- else if (res==1) state = 4; /* All clients have started the job pipe */
- else if (res==2) state = 4; /* There is dead clients but all alive are ready to go */
- else state = -3;
- break;
- case 4: res = send_data();
- if (res==0) state = 4;
- else if (res==1) state = 5; /* All data sent */
- else state = -4;
- break;
- case 5: res = wait_all_finalize_job();
- if (res==0) state = 5;
- else if (res==1) state = 6;
- else state = -5;
- case 6: res = is_there_more_job();
- if (res==0) state = 0;
- else if (res==1) state = 3;
- else state = -6;
- break;
- }
- }
- fsm_trace(state);
-
- unsetup_sockets();
-
- if ( state < 0 )
- return -state;
-
- return EXIT_SUCCESS;
-}
-
-int send_hello() {
- ssize_t nwrite;
- const char *payload = "hello";
- int paylen = strlen(payload);
-
- nwrite = sendto(mcast_sock, payload, paylen, 0, mcast_addr->ai_addr, mcast_addr->ai_addrlen);
- if ( nwrite < 0 ) {
- perror("sendto() failed");
- return -1;
- }
- if ( nwrite < paylen ) {
- fprintf(stderr, "%s", "Short packet sent");
- }
-
- return 0;
-}
-
-int accept_pending_clients_or_wait_a_bit() {
- struct timeval timeout;
- fd_set readfds, exceptfds;
- ssize_t nread;
- int res;
-
- FD_ZERO(&readfds);
- FD_ZERO(&exceptfds);
- FD_SET(0,&readfds);
- FD_SET(ucast_sock,&readfds);
- FD_SET(ucast_sock,&exceptfds);
- timeout.tv_sec = 2;
- timeout.tv_usec = 0;
-
- res = select(ucast_sock+1, &readfds, NULL, &exceptfds, &timeout);
- if ( res < 0 ) {
- perror("select() failed");
- return -1;
- }
-
- if ( res > 0 ) {
- if (FD_ISSET(ucast_sock, &readfds)) {
- /*TODO : this assumes that the event is an accept() while ones could be send data there */
- if ( clients_next >= MAX_CLIENTS ) {
- fprintf(stderr, "%s\n", "Bouncing client, MAX_CLIENTS reached");
- close(accept(ucast_sock, NULL, 0));
- } else {
- socklen_t addrlen = sizeof(struct sockaddr);
- clients[clients_next].sock = accept(ucast_sock, &(clients[clients_next].addr), &addrlen);
- clients[clients_next].state = 0;
- printf("Connected client on fd %i\n", clients[clients_next].sock);
- clients_next++;
- }
- }
- /*TODO : drop this keybord read with accept(), this is not portable */
- if ( FD_ISSET(0, &readfds)) {
- nread = read(0, readbuf, READ_BUF_LEN);
- if ( nread <= 0 ) {
- fprintf(stderr, "%s\n", "lost stdin");
- }
- /* User wants to go now */
- return 2;
- }
- if (FD_ISSET(ucast_sock, &exceptfds)) {
- fprintf(stderr, "%s\n", "unhandled except on ucast_sock");
- return -2;
- }
- }
- if (res == 0 ) {
- /* Nothing happened before timeout */
- return 1;
- }
- return 0;
-}
-
-int start_job() {
- struct timeval timeout;
- fd_set readfds, exceptfds;
- ssize_t nread, nwrite;
- int all_ready, all_non_dead_ready;
- int i, res;
- int client_sock;
- const char *payload = "start";
- int paylen = strlen(payload);
-
- nwrite = sendto(mcast_sock, payload, paylen, 0, mcast_addr->ai_addr, mcast_addr->ai_addrlen);
- if ( nwrite < 0 ) {
- perror("sendto() failed");
- return -1;
- }
- if ( nwrite < paylen ) {
- fprintf(stderr, "%s", "Short packet sent");
- }
-
- all_ready = 1;
- all_non_dead_ready = 1;
-
- FD_ZERO(&readfds);
- FD_ZERO(&exceptfds);
- for ( i=0; i<clients_next; i++) {
- FD_SET(clients[i].sock,&readfds);
- FD_SET(clients[i].sock,&exceptfds);
- }
- timeout.tv_sec = 2;
- timeout.tv_usec = 0;
- res = select(clients_next, &readfds, NULL, &exceptfds, &timeout);
- if ( res < 0 ) {
- perror("select() failed");
- return -1;
- }
-
- if ( res > 0 ) {
- for ( i=0; i<clients_next; i++) {
- client_sock = clients[i].sock;
- if (FD_ISSET(client_sock, &readfds)) {
- printf("todo info from client %i\n", i);
- nread = read(client_sock, readbuf, 5);
- if ( nread <= 0 ) {
- fprintf(stderr, "lost client %i\n", i);
- clients[i].state = 2;
- } else if ( nread < 5 ) {
- fprintf(stderr, "short data from %i\n", i);
- clients[i].state = 2;
- } else if ( strncmp("ready", readbuf, 5) != 0 ) {
- fprintf(stderr, "unexpected data from %i\n", i);
- clients[i].state = 2;
- } else {
- /* Received "ready" ack from client */
- clients[i].state = 1;
- }
- }
- if (FD_ISSET(clients[i].sock, &exceptfds)) {
- fprintf(stderr, "unhandled except on client %i\n", i);
- clients[i].state = 2;
- }
- all_ready &= (clients[i].state == 1);
- if ( clients[i].state != 2)
- all_non_dead_ready &= (clients[i].state == 1);
- }
- }
- /* (res == 0 ) nothing happened before timeout */
-
- if ( all_ready )
- return 1;
- if ( all_non_dead_ready )
- return 2;
-
- return 0;
-}
-
-void send_fake(char buf[], int paylen, int i) {
- *( (uint32_t *) buf+1 ) = htonl(i);
- snprintf(buf+28, 6, "%05i", i);
- *( (char *) buf+33 ) = ')';
- sendto(mcast_sock, buf, paylen, 0, mcast_addr->ai_addr, mcast_addr->ai_addrlen);
-}
-
-int send_data() {
- ssize_t nwrite;
- char buf[MULTICAST_MAX_PAYLOAD_SIZE];
- int paylen = MULTICAST_MAX_PAYLOAD_SIZE;
- int i;
-
- /* XXX Dummy */
- memset(buf, '.', MULTICAST_MAX_PAYLOAD_SIZE-1);
- buf[MULTICAST_MAX_PAYLOAD_SIZE-1]='\n';
- strcpy(buf, "dataXXXXJe suis a la plage (XXXXX)");
-
- send_fake(buf, paylen, 5);
- send_fake(buf, paylen, 4);
- send_fake(buf, paylen, 3);
-
- for (i=6; i<=100000; i+=2) {
- send_fake(buf, paylen, i);
- }
- for (i=7; i<=100000; i+=2) {
- send_fake(buf, paylen, i);
- }
-
- send_fake(buf, paylen, 1);
- send_fake(buf, paylen, 1);
- send_fake(buf, paylen, 2);
-
- *( (uint32_t *) buf+1 ) = htonl(3);
- buf[21]='m', buf[22]='e', buf[23]='r'; buf[24]='.'; buf[25]='\n'; paylen = 26;
- nwrite = sendto(mcast_sock, buf, paylen, 0, mcast_addr->ai_addr, mcast_addr->ai_addrlen);
- if ( nwrite < 0 ) {
- perror("sendto() failed");
- return -1;
- }
- if ( nwrite < paylen ) {
- fprintf(stderr, "%s", "Short packet sent");
- }
-
- return 1;
-}
-
-
-int wait_all_finalize_job() {
- struct timeval timeout;
- fd_set readfds, exceptfds;
- ssize_t nread, nwrite;
- int all_non_dead_done;
- int i, res;
- int client_sock;
- char buf[] = "end:XXXX";
- int paylen = strlen(buf);
-
- *( (uint32_t *) buf+1 ) = htonl(100000);
- nwrite = sendto(mcast_sock, buf, paylen, 0, mcast_addr->ai_addr, mcast_addr->ai_addrlen);
- if ( nwrite < 0 ) {
- perror("sendto() failed");
- return -1;
- }
- if ( nwrite < paylen ) {
- fprintf(stderr, "%s", "Short packet sent");
- }
-
- all_non_dead_done = 1;
-
- FD_ZERO(&readfds);
- FD_ZERO(&exceptfds);
- for ( i=0; i<clients_next; i++) {
- FD_SET(clients[i].sock,&readfds);
- FD_SET(clients[i].sock,&exceptfds);
- }
- timeout.tv_sec = 2;
- timeout.tv_usec = 0;
- res = select(clients_next, &readfds, NULL, &exceptfds, &timeout);
- if ( res < 0 ) {
- perror("select() failed");
- return -1;
- }
-
- if ( res > 0 ) {
- for ( i=0; i<clients_next; i++) {
- client_sock = clients[i].sock;
- if (FD_ISSET(client_sock, &readfds)) {
- printf("todo info from client %i\n", i);
- nread = read(client_sock, readbuf, 5);
- if ( nread <= 0 ) {
- fprintf(stderr, "lost client %i\n", i);
- clients[i].state = 2;
- } else if ( nread < 5 ) {
- fprintf(stderr, "short data from %i\n", i);
- clients[i].state = 2;
- } else if ( strncmp("done.", readbuf, 5) != 0 ) {
- fprintf(stderr, "unexpected data from %i\n", i);
- clients[i].state = 2;
- } else {
- /* Received "done." ack from client */
- clients[i].state = 3;
- }
- }
- if (FD_ISSET(clients[i].sock, &exceptfds)) {
- fprintf(stderr, "unhandled except on client %i\n", i);
- clients[i].state = 2;
- }
- if ( clients[i].state != 2)
- all_non_dead_done &= (clients[i].state == 3);
- }
- }
- /* (res == 0 ) nothing happened before timeout */
-
- if ( all_non_dead_done )
- return 1;
-
- return 0;
-}
-
-
-int is_there_more_job() {
- return 0;
-}
-
-
-void die(char* msg) {
- fprintf(stderr, "%s\n", msg);
- if (mcast_sock > 0)
- close(mcast_sock);
- if (ucast_sock > 0)
- close(ucast_sock);
- exit(EXIT_FAILURE);
-}
-
-void usage(char *msg) {
- char ubuf[256];
- if ( msg != NULL )
- fprintf(stderr, "%s\n", msg);
- ubuf[0] = '\0';
- snprintf(ubuf, 255, "Usage: %s [port] [mcast_ip] [mcast_ttl]\n", prog_name);
- die(ubuf);
-}
-
-void arg_parse(int argc, char* argv[]) {
- prog_name = argv[0];
- if ( argc > 3 )
- usage("Too many arguments");
- port = (argc >= 2)?argv[1]:DEFAULT_PORT_STR;
- mcast_ip = (argc >= 3)?argv[2]:DEFAULT_MCAST_IP_STR;
- mcast_ttl = (argc >= 4)?atoi(argv[3]):DEFAULT_MCAST_TTL;
- if ( mcast_ttl < 1 || mcast_ttl > 64 )
- mcast_ttl = 1;
-}
-
-void fsm_trace(int state) {
- static int prev_state = 0;
-
- if ( state < 0 ) {
- fprintf(stderr, "Abnormal exit condition %i (from %s)\n", state, state_str[prev_state]);
- } else if ( prev_state != state) {
- if ( state == 0 ) {
- fprintf(stderr, "Normal exit (from %s)\n", state_str[prev_state]);
- } else {
- fprintf(stderr, "Now in %s (from %s)\n", state_str[state], state_str[prev_state]);
- }
- prev_state = state;
- }
-}
-
-void setup_sockets() {
- /* Setup ucast_sock */
- ucast_sock = ucast_server_socket(port, MAX_PENDING_CONNECTIONS);
- if(ucast_sock < 0)
- usage("Could not setup unicast socket. Wrong args given ?");
-
- /* Setup mcast_sock */
- mcast_sock = mcast_send_socket(mcast_ip, port, mcast_ttl, &mcast_addr);
- if(mcast_sock < 0)
- usage("Could not setup multicast socket. Wrong args given ?");
-}
-
-void unsetup_sockets() {
- if ( ucast_sock > 0 ) {
- close(ucast_sock);
- ucast_sock = 0;
- }
-
- if ( mcast_sock > 0 ) {
- close(mcast_sock);
- mcast_sock = 0;
- if ( mcast_addr ) {
- freeaddrinfo(mcast_addr);
- mcast_addr = 0;
- }
- }
-}
-
diff --git a/mcastseed/src/random_speed_dd.c b/mcastseed/src/random_speed_dd.c
deleted file mode 100644
index 4d94bc0..0000000
--- a/mcastseed/src/random_speed_dd.c
+++ /dev/null
@@ -1,36 +0,0 @@
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <errno.h>
-
-char buf[0xffff];
-
-int main() {
- ssize_t nread, nwrite, remains;
-
- srandom(1); /* Always the same pseudo-random sequence */
-
- while ( (nread=read(0, buf, 0xfff & rand())) > 0 ) {
- remains = nread;
- while ( remains ) {
- nwrite=write(1, buf, nread);
- if ( nwrite < 0 ) {
- if ( !(errno == EAGAIN || errno == EWOULDBLOCK || errno == EINTR) ) {
- perror("write");
- return nwrite;
- }
- } else {
- remains -= nwrite;
- }
- }
- /*fprintf(stderr, "nread==%zu, nwrite==%zu\n", nread, nwrite);*/
- usleep( 0xffff & rand() );
- }
- if ( nread < 0 ) {
- perror("read");
- return nread;
- }
-
- return 0;
-}
-
diff --git a/mcastseed/src/sockets.c b/mcastseed/src/sockets.c
deleted file mode 100644
index 6aea016..0000000
--- a/mcastseed/src/sockets.c
+++ /dev/null
@@ -1,303 +0,0 @@
-/*
- * Copyright 2016 by Ludovic Pouzenc <ludovic@pouzenc.fr>
- *
- * Greatly inspired from msock.h written by Christian Beier <dontmind@sdf.org>
- */
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include "sockets.h"
-
-int mcast_recv_socket(char *mcast_ip, char *port, int wanted_so_rcvbuf) {
-
- int sock;
- struct addrinfo hints = { 0 }; /* Hints for name lookup */
- struct addrinfo *ai_local = NULL; /* Local address to bind to */
- struct addrinfo *mcast_ai = NULL; /* Multicast Address */
- int yes=1;
- int status, optval;
- socklen_t optval_len;
- int dfltrcvbuf;
-
- /* Resolve the multicast group address */
- hints.ai_family = PF_UNSPEC;
- hints.ai_flags = AI_NUMERICHOST;
- if ((status = getaddrinfo(mcast_ip, NULL, &hints, &mcast_ai)) != 0) {
- fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(status));
- goto error;
- }
-
- /*
- * Get a local address with the same family (IPv4 or IPv6) as our multicast group
- * This is for receiving on a certain port.
- */
- hints.ai_family = mcast_ai->ai_family;
- hints.ai_socktype = SOCK_DGRAM;
- hints.ai_flags = AI_PASSIVE; /* Return an address we can bind to */
- if ( getaddrinfo(NULL, port, &hints, &ai_local) != 0 ) {
- fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(status));
- goto error;
- }
-
- /* Create socket for receiving datagrams */
- if ( (sock = socket(ai_local->ai_family, ai_local->ai_socktype, 0)) < 0 ) {
- perror("socket() failed");
- goto error;
- }
-
- /*
- * Enable SO_REUSEADDR to allow multiple instances of this
- * application to receive copies of the multicast datagrams.
- */
- if (setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,(char*)&yes,sizeof(int)) == -1) {
- perror("setsockopt");
- goto error;
- }
-
- /* Bind the local address to the multicast port */
- if ( bind(sock, ai_local->ai_addr, ai_local->ai_addrlen) != 0 ) {
- perror("bind() failed");
- goto error;
- }
-
- /* get/set socket receive buffer */
- optval=0;
- optval_len = sizeof(optval);
- if(getsockopt(sock, SOL_SOCKET, SO_RCVBUF,(char*)&optval, &optval_len) !=0) {
- perror("getsockopt");
- goto error;
- }
- dfltrcvbuf = optval;
- optval = wanted_so_rcvbuf;
- if(setsockopt(sock,SOL_SOCKET,SO_RCVBUF,(char*)&optval,sizeof(optval)) != 0) {
- perror("setsockopt");
- goto error;
- }
- if(getsockopt(sock, SOL_SOCKET, SO_RCVBUF,(char*)&optval, &optval_len) != 0) {
- perror("getsockopt");
- goto error;
- }
- fprintf(stderr, "tried to set socket receive buffer from %d to %d, got %d\n",
- dfltrcvbuf, wanted_so_rcvbuf, optval);
-
-
- /* Join the multicast group. We do this seperately depending on whether we
- * are using IPv4 or IPv6.
- */
- if ( mcast_ai->ai_family == PF_INET &&
- mcast_ai->ai_addrlen == sizeof(struct sockaddr_in) ) /* IPv4 */
- {
- struct ip_mreq multicastRequest; /* Multicast address join structure */
-
- /* Specify the multicast group */
- memcpy(&multicastRequest.imr_multiaddr,
- &((struct sockaddr_in*)(mcast_ai->ai_addr))->sin_addr,
- sizeof(multicastRequest.imr_multiaddr));
-
- /* Accept multicast from any interface */
- multicastRequest.imr_interface.s_addr = htonl(INADDR_ANY);
-
- /* Join the multicast address */
- if ( setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char*) &multicastRequest, sizeof(multicastRequest)) != 0 ) {
- perror("setsockopt() failed");
- goto error;
- }
- }
- else if ( mcast_ai->ai_family == PF_INET6 &&
- mcast_ai->ai_addrlen == sizeof(struct sockaddr_in6) ) /* IPv6 */
- {
- struct ipv6_mreq multicastRequest; /* Multicast address join structure */
-
- /* Specify the multicast group */
- memcpy(&multicastRequest.ipv6mr_multiaddr,
- &((struct sockaddr_in6*)(mcast_ai->ai_addr))->sin6_addr,
- sizeof(multicastRequest.ipv6mr_multiaddr));
-
- /* Accept multicast from any interface */
- multicastRequest.ipv6mr_interface = 0;
-
- /* Join the multicast address */
- if ( setsockopt(sock, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP, (char*) &multicastRequest, sizeof(multicastRequest)) != 0 ) {
- perror("setsockopt() failed");
- goto error;
- }
- }
- else {
- perror("Neither IPv4 or IPv6");
- goto error;
- }
-
-
- if(ai_local)
- freeaddrinfo(ai_local);
- if(mcast_ai)
- freeaddrinfo(mcast_ai);
-
- return sock;
-
-error:
- if(ai_local)
- freeaddrinfo(ai_local);
- if(mcast_ai)
- freeaddrinfo(mcast_ai);
-
- return -1;
-}
-
-
-int mcast_send_socket(char* mcast_ip, char* port, int multicastTTL, struct addrinfo **mcast_ai) {
-
- int sock;
- struct addrinfo hints = { 0 }; /* Hints for name lookup */
- int status;
-
-
- /* Resolve destination address for multicast datagrams */
- hints.ai_family = PF_UNSPEC;
- hints.ai_socktype = SOCK_DGRAM;
- hints.ai_flags = AI_NUMERICHOST;
- if ((status = getaddrinfo(mcast_ip, port, &hints, mcast_ai)) != 0 )
- {
- fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(status));
- return -1;
- }
-
- /* Create socket for sending multicast datagrams */
- if ( (sock = socket((*mcast_ai)->ai_family, (*mcast_ai)->ai_socktype, 0)) < 0 ) {
- perror("socket() failed");
- freeaddrinfo(*mcast_ai);
- return -1;
- }
-
- /* Set TTL of multicast packet */
- if ( setsockopt(sock,
- (*mcast_ai)->ai_family == PF_INET6 ? IPPROTO_IPV6 : IPPROTO_IP,
- (*mcast_ai)->ai_family == PF_INET6 ? IPV6_MULTICAST_HOPS : IP_MULTICAST_TTL,
- (char*) &multicastTTL, sizeof(multicastTTL)) != 0 ) {
- perror("setsockopt() failed");
- freeaddrinfo(*mcast_ai);
- return -1;
- }
-
- /* set the sending interface */
- if((*mcast_ai)->ai_family == PF_INET) {
- in_addr_t iface = INADDR_ANY; /* well, yeah, any */
- if(setsockopt (sock,
- IPPROTO_IP,
- IP_MULTICAST_IF,
- (char*)&iface, sizeof(iface)) != 0) {
- perror("interface setsockopt() sending interface");
- freeaddrinfo(*mcast_ai);
- return -1;
- }
-
- }
- if((*mcast_ai)->ai_family == PF_INET6) {
- unsigned int ifindex = 0; /* 0 means 'default interface'*/
- if(setsockopt (sock,
- IPPROTO_IPV6,
- IPV6_MULTICAST_IF,
- (char*)&ifindex, sizeof(ifindex)) != 0) {
- perror("interface setsockopt() sending interface");
- freeaddrinfo(*mcast_ai);
- return -1;
- }
-
- }
-
- return sock;
-}
-
-
-int ucast_server_socket(char* port, int max_pending_conn) {
-
- int sock;
- struct addrinfo *serverAddr;
- struct addrinfo hints = { 0 }; /* Hints for name lookup */
- int status;
-
-
- /* Prepare an addrinfo struct for a local socket */
- hints.ai_family = PF_INET6;
- hints.ai_socktype = SOCK_STREAM;
- hints.ai_flags = AI_PASSIVE;
- if ((status = getaddrinfo(NULL, port, &hints, &serverAddr)) != 0 )
- {
- fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(status));
- return -1;
- }
- /* Create socket */
- if ( (sock = socket(serverAddr->ai_family, serverAddr->ai_socktype, serverAddr->ai_protocol)) < 0 ) {
- perror("socket() failed");
- freeaddrinfo(serverAddr);
- return -1;
- }
-
- /* Accepts also IPv4 traffic if the socket is INET6 */
- if(serverAddr->ai_family == PF_INET6) {
- unsigned int no = 0;
- if(setsockopt (sock,
- IPPROTO_IPV6,
- IPV6_V6ONLY,
- (char*)&no, sizeof(no)) != 0) {
- perror("setsockopt() !IPV6_V6ONLY failed");
- freeaddrinfo(serverAddr);
- return -1;
- }
- }
-
- /* Bind socket to local address/port */
- if ( bind(sock, serverAddr->ai_addr, serverAddr->ai_addrlen) < 0 ) {
- perror("bind() failed");
- close(sock);
- freeaddrinfo(serverAddr);
- return -1;
- }
-
- freeaddrinfo(serverAddr);
-
- /* Start listening incoming connections */
- if ( listen(sock, max_pending_conn) < 0 ) {
- perror("listen() failed");
- close(sock);
- }
-
- return sock;
-}
-
-int ucast_client_socket(char* server_ip, char* port) {
-
- int sock;
- struct addrinfo *serverAddr;
- struct addrinfo hints = { 0 }; /* Hints for name lookup */
- int status;
-
- /* Resolve destination address */
- hints.ai_family = PF_UNSPEC;
- hints.ai_socktype = SOCK_STREAM;
- hints.ai_flags = AI_NUMERICHOST;
- if ((status = getaddrinfo(server_ip, port, &hints, &serverAddr)) != 0 )
- {
- fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(status));
- return -1;
- }
-
- /* Create socket */
- if ( (sock = socket(serverAddr->ai_family, serverAddr->ai_socktype, 0)) < 0 ) {
- perror("socket() failed");
- freeaddrinfo(serverAddr);
- return -1;
- }
-
- /* Connect it to the remote server */
- if ( connect(sock, serverAddr->ai_addr, serverAddr->ai_addrlen) < 0 ) {
- perror("connect() failed");
- close(sock);
- freeaddrinfo(serverAddr);
- return -1;
- }
-
- freeaddrinfo(serverAddr);
- return sock;
-}
-
diff --git a/mcastseed/src/sockets.h b/mcastseed/src/sockets.h
deleted file mode 100644
index 86f7c5b..0000000
--- a/mcastseed/src/sockets.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright 2016 by Ludovic Pouzenc <ludovic@pouzenc.fr>
- *
- * Greatly inspired from msock.h written by Christian Beier <dontmind@sdf.org>
- */
-
-#ifndef SOCKETS_H
-#define SOCKETS_H
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netdb.h>
-/*
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <sys/un.h>
-#include <netinet/tcp.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-*/
-int mcast_recv_socket(char *mcast_ip, char *port, int wanted_so_rcvbuf);
-int mcast_send_socket(char *mcast_ip, char *port, int mcast_ttl, struct addrinfo **mcast_ai);
-
-int ucast_server_socket(char *port, int max_pending_conn);
-int ucast_client_socket(char *server_ip, char *port);
-
-#endif /*SOCKETS_H*/
--
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