From 083518b76f0614dc43b6a2fa06cc4ff337deb1f7 Mon Sep 17 00:00:00 2001 From: compudj Date: Tue, 28 Oct 2008 14:27:23 +0000 Subject: [PATCH] update lttd git-svn-id: http://ltt.polymtl.ca/svn@3140 04897980-b3bd-0310-b5e0-8ef037075253 --- trunk/ltt-control/lttd/lttd.c | 90 ++++++++++++++++++++++++----------- 1 file changed, 62 insertions(+), 28 deletions(-) diff --git a/trunk/ltt-control/lttd/lttd.c b/trunk/ltt-control/lttd/lttd.c index 39a2fb7..06af633 100644 --- a/trunk/ltt-control/lttd/lttd.c +++ b/trunk/ltt-control/lttd/lttd.c @@ -136,14 +136,21 @@ static unsigned long num_threads = 1; volatile static int quit_program = 0; /* For signal handler */ static int dump_flight_only = 0; static int dump_normal_only = 0; +static int verbose_mode = 0; + +#define printf_verbose(fmt, args...) \ + do { \ + if (verbose_mode) \ + printf(fmt, ##args); \ + } while (0) /* Args : * * -t directory Directory name of the trace to write to. Will be created. * -c directory Root directory of the debugfs trace channels. * -d Run in background (daemon). - * -a Trace append mode. - * -s Send SIGUSR1 to parent when ready for IO. + * -a Trace append mode. + * -s Send SIGUSR1 to parent when ready for IO. */ void show_arguments(void) { @@ -157,6 +164,7 @@ void show_arguments(void) printf("-N Number of threads to start.\n"); printf("-f Dump only flight recorder channels.\n"); printf("-n Dump only normal channels.\n"); + printf("-v Verbose mode.\n"); printf("\n"); } @@ -214,6 +222,9 @@ int parse_arguments(int argc, char **argv) case 'n': dump_normal_only = 1; break; + case 'v': + verbose_mode = 1; + break; default: printf("Invalid argument '%s'.\n", argv[argn]); printf("\n"); @@ -271,16 +282,18 @@ int open_buffer_file(char *filename, char *path_channel, char *path_trace, if(strncmp(filename, "flight-", sizeof("flight-")-1) != 0) { if(dump_flight_only) { - printf("Skipping normal channel %s\n", path_channel); + printf_verbose("Skipping normal channel %s\n", + path_channel); return 0; } } else { if(dump_normal_only) { - printf("Skipping flight channel %s\n", path_channel); + printf_verbose("Skipping flight channel %s\n", + path_channel); return 0; } } - printf("Opening file.\n"); + printf_verbose("Opening file.\n"); fd_pairs->pair = realloc(fd_pairs->pair, ++fd_pairs->num_pairs * sizeof(struct fd_pair)); @@ -297,7 +310,8 @@ int open_buffer_file(char *filename, char *path_channel, char *path_trace, ret = stat(path_trace, &stat_buf); if(ret == 0) { if(append_mode) { - printf("Appending to file %s as requested\n", path_trace); + printf_verbose("Appending to file %s as requested\n", + path_trace); fd_pairs->pair[fd_pairs->num_pairs-1].trace = open(path_trace, O_WRONLY|O_APPEND, @@ -347,7 +361,7 @@ int open_channel_trace_pairs(char *subchannel_name, char *subtrace_name, goto end; } - printf("Creating trace subdirectory %s\n", subtrace_name); + printf_verbose("Creating trace subdirectory %s\n", subtrace_name); ret = mkdir(subtrace_name, S_IRWXU|S_IRWXG|S_IRWXO); if(ret == -1) { if(errno != EEXIST) { @@ -373,11 +387,12 @@ int open_channel_trace_pairs(char *subchannel_name, char *subtrace_name, iwatch_array->elem = realloc(iwatch_array->elem, ++iwatch_array->num * sizeof(struct inotify_watch)); - printf("Adding inotify for channel %s\n", path_channel); + printf_verbose("Adding inotify for channel %s\n", path_channel); iwatch_array->elem[iwatch_array->num-1].wd = inotify_add_watch(*inotify_fd, path_channel, IN_CREATE); strcpy(iwatch_array->elem[iwatch_array->num-1].path_channel, path_channel); strcpy(iwatch_array->elem[iwatch_array->num-1].path_trace, path_trace); - printf("Added inotify for channel %s, wd %u\n", iwatch_array->elem[iwatch_array->num-1].path_channel, + printf_verbose("Added inotify for channel %s, wd %u\n", + iwatch_array->elem[iwatch_array->num-1].path_channel, iwatch_array->elem[iwatch_array->num-1].wd); #endif @@ -394,11 +409,11 @@ int open_channel_trace_pairs(char *subchannel_name, char *subtrace_name, continue; } - printf("Channel file : %s\n", path_channel); + printf_verbose("Channel file : %s\n", path_channel); if(S_ISDIR(stat_buf.st_mode)) { - printf("Entering channel subdirectory...\n"); + printf_verbose("Entering channel subdirectory...\n"); ret = open_channel_trace_pairs(path_channel, path_trace, fd_pairs, inotify_fd, iwatch_array); if(ret < 0) continue; @@ -426,7 +441,7 @@ int read_subbuffer(struct fd_pair *pair) err = ioctl(pair->channel, RELAY_GET_SUBBUF, &consumed_old); - printf("cookie : %u\n", consumed_old); + printf_verbose("cookie : %u\n", consumed_old); if(err != 0) { ret = errno; perror("Reserving sub buffer failed (everything is normal, it is due to concurrency)"); @@ -447,17 +462,17 @@ int read_subbuffer(struct fd_pair *pair) len = pair->subbuf_size; offset = 0; while (len > 0) { - printf("splice chan to pipe offset %lu\n", offset); + printf_verbose("splice chan to pipe offset %lu\n", offset); ret = splice(pair->channel, &offset, thread_pipe[1], NULL, len, SPLICE_F_MOVE); - printf("splice chan to pipe ret %ld\n", ret); + printf_verbose("splice chan to pipe ret %ld\n", ret); if (ret < 0) { perror("Error in relay splice"); goto write_error; } ret = splice(thread_pipe[0], NULL, pair->trace, NULL, ret, SPLICE_F_MOVE); - printf("splice pipe to file %ld\n", ret); + printf_verbose("splice pipe to file %ld\n", ret); if (ret < 0) { perror("Error in file splice"); goto write_error; @@ -624,9 +639,11 @@ int read_inotify(int inotify_fd, for(i=0; inum; i++) { if(iwatch_array->elem[i].wd == ievent->wd && ievent->mask == IN_CREATE) { - printf("inotify wd %u event mask : %u for %s%s\n", + printf_verbose( + "inotify wd %u event mask : %u for %s%s\n", ievent->wd, ievent->mask, - iwatch_array->elem[i].path_channel, ievent->name); + iwatch_array->elem[i].path_channel, + ievent->name); old_num = fd_pairs->num_pairs; strcpy(path_channel, iwatch_array->elem[i].path_channel); strcat(path_channel, ievent->name); @@ -724,22 +741,29 @@ int read_channels(unsigned long thread_num, struct channel_trace_fd *fd_pairs, goto free_fd; } - printf("Data received\n"); + printf_verbose("Data received\n"); #ifdef HAS_INOTIFY switch(pollfd[0].revents) { case POLLERR: - printf("Error returned in polling inotify fd %d.\n", pollfd[0].fd); + printf_verbose( + "Error returned in polling inotify fd %d.\n", + pollfd[0].fd); break; case POLLHUP: - printf("Polling inotify fd %d tells it has hung up.\n", pollfd[0].fd); + printf_verbose( + "Polling inotify fd %d tells it has hung up.\n", + pollfd[0].fd); break; case POLLNVAL: - printf("Polling inotify fd %d tells fd is not open.\n", pollfd[0].fd); + printf_verbose( + "Polling inotify fd %d tells fd is not open.\n", + pollfd[0].fd); break; case POLLPRI: case POLLIN: - - printf("Polling inotify fd %d : data ready.\n", pollfd[0].fd); + printf_verbose( + "Polling inotify fd %d : data ready.\n", + pollfd[0].fd); pthread_rwlock_wrlock(&fd_pairs_lock); read_inotify(inotify_fd, fd_pairs, iwatch_array); @@ -752,21 +776,29 @@ int read_channels(unsigned long thread_num, struct channel_trace_fd *fd_pairs, for(i=inotify_fds;ipair[i-inotify_fds].mutex) == 0) { - printf("Urgent read on fd %d\n", pollfd[i].fd); + printf_verbose( + "Urgent read on fd %d\n", + pollfd[i].fd); /* Take care of high priority channels first. */ high_prio = 1; /* it's ok to have an unavailable subbuffer */ @@ -791,7 +823,9 @@ int read_channels(unsigned long thread_num, struct channel_trace_fd *fd_pairs, pthread_rwlock_rdlock(&fd_pairs_lock); if(pthread_mutex_trylock(&fd_pairs->pair[i-inotify_fds].mutex) == 0) { /* Take care of low priority channels. */ - printf("Normal read on fd %d\n", pollfd[i].fd); + printf_verbose( + "Normal read on fd %d\n", + pollfd[i].fd); /* it's ok to have an unavailable subbuffer */ ret = read_subbuffer(&fd_pairs->pair[i-inotify_fds]); if(ret == EAGAIN) ret = 0; -- 2.34.1