From 53eb21510cf90c47f11d81a5b45a5f4d34d738f1 Mon Sep 17 00:00:00 2001 From: Aaron Krebs Date: Wed, 3 Dec 2014 22:10:21 +0100 Subject: [PATCH] Test case for sending large messages. --- test/Makefile.am | 5 +- test/echo-fork.c | 223 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 227 insertions(+), 1 deletion(-) create mode 100755 test/echo-fork.c diff --git a/test/Makefile.am b/test/Makefile.am index 3828584c..630f5d7d 100644 --- a/test/Makefile.am +++ b/test/Makefile.am @@ -11,7 +11,7 @@ dist_check_SCRIPTS = $(TESTS) AM_CPPFLAGS = -I../src -check_PROGRAMS = basic basicpp channels channels-fork import-export invite-join sign-verify +check_PROGRAMS = basic basicpp channels channels-fork import-export invite-join sign-verify echo-fork basic_SOURCES = basic.c basic_LDADD = ../src/libmeshlink.la @@ -25,6 +25,9 @@ channels_LDADD = ../src/libmeshlink.la channels_fork_SOURCES = channels-fork.cpp channels_fork_LDADD = ../src/libmeshlink.la +echo_fork_SOURCES = echo-fork.c +echo_fork_LDADD = ../src/libmeshlink.la + import_export_SOURCES = import-export.c import_export_LDADD = ../src/libmeshlink.la diff --git a/test/echo-fork.c b/test/echo-fork.c new file mode 100755 index 00000000..ee0dfb26 --- /dev/null +++ b/test/echo-fork.c @@ -0,0 +1,223 @@ +#define _GNU_SOURCE +#include +#include +#include +#include + +#include "../src/meshlink.h" + +volatile bool bar_reachable = false; +volatile bool bar_responded = false; + +void log_cb(meshlink_handle_t *mesh, meshlink_log_level_t level, const char *text) { + if(mesh) + fprintf(stderr, "(%s) ", mesh->name); + fprintf(stderr, "[%d] %s\n", level, text); +} + +void status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable) { + if(!strcmp(node->name, "bar")) + bar_reachable = reachable; +} + +void foo_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len) { + fprintf(stderr, "Foo received from Bar:\n%s", (char*)data); + fprintf(stderr, "==============================\n"); + fprintf(stderr, "%s", (char*)data ); + fprintf(stdout, "%s", (char*)data ); +} + +void bar_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len) { + // Echo the data back. + fprintf(stderr, "Bar received:\n%s", (char*)data); + fprintf(stderr, "==============================\n"); + meshlink_channel_send(mesh, channel, data, len); +} + +bool reject_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *data, size_t len) { + return false; +} + +bool accept_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *data, size_t len) { + if(port != 7) + return false; + meshlink_set_channel_receive_cb(mesh, channel, bar_receive_cb); + if(data) + bar_receive_cb(mesh, channel, data, len); + return true; +} + +void poll_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, size_t len) { + meshlink_set_channel_poll_cb(mesh, channel, NULL); + bar_responded=true; +} + +int main1(int rfd, int wfd) { + meshlink_set_log_cb(NULL, MESHLINK_DEBUG, log_cb); + + meshlink_handle_t *mesh1 = meshlink_open("channels_conf.1", "foo", "channels", DEV_CLASS_BACKBONE); + if(!mesh1) { + fprintf(stderr, "Could not initialize configuration for foo\n"); + return 1; + } + + meshlink_add_address(mesh1, "localhost"); + + char *data = meshlink_export(mesh1); + if(!data) { + fprintf(stderr, "Foo could not export its configuration\n"); + return 1; + } + + size_t len = strlen(data); + write(wfd, &len, sizeof len); + write(wfd, data, len); + free(data); + + read(rfd, &len, sizeof len); + char indata[len + 1]; + read(rfd, indata, len); + indata[len] = 0; + + fprintf(stderr, "Foo exchanged data\n"); + + meshlink_import(mesh1, indata); + + meshlink_set_channel_accept_cb(mesh1, reject_cb); + meshlink_set_node_status_cb(mesh1, status_cb); + + if(!meshlink_start(mesh1)) { + fprintf(stderr, "Foo could not start\n"); + return 1; + } + + for(int i = 0; i < 20; i++) { + sleep(1); + if(bar_reachable) + break; + } + + if(!bar_reachable) { + fprintf(stderr, "Bar not reachable for foo after 20 seconds\n"); + return 1; + } + + // Open a channel from foo to bar. + + meshlink_node_t *bar = meshlink_get_node(mesh1, "bar"); + if(!bar) { + fprintf(stderr, "Foo could not find bar\n"); + return 1; + } + + meshlink_channel_t *channel = meshlink_channel_open(mesh1, bar, 7, foo_receive_cb, NULL, 0); + meshlink_set_channel_poll_cb(mesh1, channel, poll_cb); + + // read and buffer stdin + int BUF_SIZE = 1024; + char buffer[BUF_SIZE]; + size_t contentSize = 1; + char *content = malloc( sizeof(char) * BUF_SIZE ); + if (!content) { + fprintf(stderr, "Could not allocate buffer\n"); + } + + fprintf(stderr, "Foo reading from stdin...\n"); + content[0] = '\0'; + while(fgets(buffer,BUF_SIZE,stdin)) { + char *old = content; + contentSize += strlen(buffer); + content = realloc(content, contentSize); + strcat(content,buffer); + } + + for(int i = 0; i < 5; i++) { + sleep(1); + if(bar_responded) + break; + } + + if(!bar_responded) { + fprintf(stderr, "Bar did not respond to foo's channel message\n"); + return 1; + } + + fprintf(stderr, "Foo sending:\n%s", content); + fprintf(stderr, "==============================\n"); + + if(meshlink_channel_send(mesh1, channel, content, contentSize) != contentSize) + fprintf(stderr, "Could not send whole message\n"); + + sleep(20); + + free(content); + + meshlink_channel_close(mesh1, channel); + + // Clean up. + + meshlink_close(mesh1); + + return 0; +} + + +int main2(int rfd, int wfd) { + sleep(1); + + meshlink_set_log_cb(NULL, MESHLINK_DEBUG, log_cb); + + meshlink_handle_t *mesh2 = meshlink_open("channels_conf.2", "bar", "channels", DEV_CLASS_BACKBONE); + if(!mesh2) { + fprintf(stderr, "Could not initialize configuration for bar\n"); + return 1; + } + + char *data = meshlink_export(mesh2); + if(!data) { + fprintf(stderr, "Bar could not export its configuration\n"); + return 1; + } + + size_t len = strlen(data); + if(write(wfd, &len, sizeof len) <= 0) abort(); + if(write(wfd, data, len) <= 0) abort(); + free(data); + + read(rfd, &len, sizeof len); + char indata[len + 1]; + read(rfd, indata, len); + indata[len] = 0; + + fprintf(stderr, "Bar exchanged data\n"); + + meshlink_import(mesh2, indata); + + meshlink_set_channel_accept_cb(mesh2, accept_cb); + + if(!meshlink_start(mesh2)) { + fprintf(stderr, "Bar could not start\n"); + return 1; + } + + sleep(20); + + // Clean up. + + meshlink_close(mesh2); + + return 0; +} + + +int main(int argc, char *argv[]) { + int fda[2], fdb[2], result; + + pipe2(fda, 0); + pipe2(fdb, 0); + + if(fork()) + return main1(fda[0], fdb[1]); + else + return main2(fdb[0], fda[1]); +} -- 2.39.5