X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=command.c;h=603715b4442006650317d0320d3475eadb6bf760;hp=d08a71818cfb437c5cd6c02a13d6a7c2f3e56893;hb=becb57ea3aec697bfe953a0c3608e4c255b6d24b;hpb=46f2f102fa22ddffe515546e7db21cf208db0d90 diff --git a/command.c b/command.c index d08a7181..603715b4 100644 --- a/command.c +++ b/command.c @@ -11,6 +11,7 @@ #include #include #include +#include #include "para.h" #include "error.h" @@ -30,6 +31,8 @@ #include "user_list.h" #include "server_command_list.h" #include "afs_command_list.h" +#include "sched.h" +#include "signal.h" /** Commands including options must be shorter than this. */ #define MAX_COMMAND_LEN 32768 @@ -42,15 +45,8 @@ extern int mmd_mutex; extern struct misc_meta_data *mmd; extern struct sender senders[]; -static void dummy(int s) +static void dummy(__a_unused int s) { - /* - * At least on Solaris, SIGUSR1 is one-shot, i.e. the signal action is - * restored to the default state once the signal handler has been - * called. - */ - if (s == SIGUSR1) - signal(SIGUSR1, dummy); } static void mmd_dup(struct misc_meta_data *new_mmd) @@ -113,7 +109,7 @@ static char *get_status(struct misc_meta_data *nmmd) char *status, *flags; /* vss status info */ char *ut = uptime_str(); long offset = (nmmd->offset + 500) / 1000; - struct timeval now; + struct timeval current_time; struct tm mtime_tm; /* report real status */ @@ -123,7 +119,7 @@ static char *get_status(struct misc_meta_data *nmmd) localtime_r(&nmmd->mtime, &mtime_tm); strftime(mtime, 29, "%b %d %Y", &mtime_tm); } - gettimeofday(&now, NULL); + gettimeofday(¤t_time, NULL); ret = make_message( "%s: %zu\n" /* file size */ "%s: %s\n" /* mtime */ @@ -146,8 +142,8 @@ static char *get_status(struct misc_meta_data *nmmd) (long unsigned)nmmd->stream_start.tv_sec, (long unsigned)nmmd->stream_start.tv_usec, status_item_list[SI_CURRENT_TIME], - (long unsigned)now.tv_sec, - (long unsigned)now.tv_usec, + (long unsigned)current_time.tv_sec, + (long unsigned)current_time.tv_usec, nmmd->afd.verbose_ls_output @@ -318,7 +314,7 @@ int com_stat(int fd, int argc, char * const * argv) struct misc_meta_data tmp, *nmmd = &tmp; char *s; - signal(SIGUSR1, dummy); + para_sigaction(SIGUSR1, dummy); if (argc > 1) num = atoi(argv[1]); @@ -655,6 +651,14 @@ out: } +static void reset_signals(void) +{ + para_sigaction(SIGCHLD, SIG_IGN); + para_sigaction(SIGINT, SIG_DFL); + para_sigaction(SIGTERM, SIG_DFL); + para_sigaction(SIGHUP, SIG_DFL); +} + /** * Perform user authentication and execute a command. * @@ -694,11 +698,7 @@ __noreturn void handle_connect(int fd, const char *peername) char *p, *command = NULL; size_t numbytes; - signal(SIGCHLD, SIG_IGN); - signal(SIGINT, SIG_DFL); - signal(SIGTERM, SIG_DFL); - signal(SIGHUP, SIG_DFL); - + reset_signals(); /* we need a blocking fd here as recv() might return EAGAIN otherwise. */ ret = mark_fd_blocking(fd); if (ret < 0) @@ -792,8 +792,6 @@ __noreturn void handle_connect(int fd, const char *peername) ret = cmd->handler(fd, argc, argv); mutex_lock(mmd_mutex); mmd->num_commands++; - free(mmd->afd.afhi.info_string); - free(mmd->afd.afhi.chunk_table); mutex_unlock(mmd_mutex); if (ret >= 0) goto out;