X-Git-Url: http://git.indexdata.com/?p=yaz-moved-to-github.git;a=blobdiff_plain;f=src%2Flog.c;h=8bc5ad06895568b1ca63263e138d4350487f778d;hp=dec6a2a16d02762c5b48188fad8331a5e0f2aa85;hb=d654b817f2bdb80102dd663d78f31ab3eea4f6bd;hpb=5242cb5a8634bfa38b9333ff7f903e718ac6e292 diff --git a/src/log.c b/src/log.c index dec6a2a..8bc5ad0 100644 --- a/src/log.c +++ b/src/log.c @@ -1,5 +1,5 @@ /* This file is part of the YAZ toolkit. - * Copyright (C) 1995-2012 Index Data + * Copyright (C) Index Data * See the file LICENSE for details. */ @@ -30,8 +30,12 @@ #include #include #include +#include #include #include +#if YAZ_POSIX_THREADS +#include +#endif static int l_level = YLOG_DEFAULT_LEVEL; @@ -99,21 +103,32 @@ static struct { static unsigned int next_log_bit = YLOG_LAST_BIT<<1; /* first dynamic bit */ -static void internal_log_init(void) +static YAZ_MUTEX log_mutex = 0; + +void yaz_log_lock(void) { - static int mutex_init_flag = 0; /* not yet initialized */ - char *env; + yaz_mutex_enter(log_mutex); +} - if (mutex_init_flag) - return; - mutex_init_flag = 1; /* here, 'cause nmem_mutex_create may call yaz_log */ +void yaz_log_unlock(void) +{ + yaz_mutex_leave(log_mutex); +} +void yaz_log_init_globals(void) +{ + char *env; + + if (log_mutex == 0) + yaz_mutex_create(&log_mutex); +#if YAZ_POSIX_THREADS + pthread_atfork(yaz_log_lock, yaz_log_unlock, yaz_log_unlock); +#endif env = getenv("YAZ_LOG"); if (env) l_level = yaz_log_mask_str_x(env, l_level); } - FILE *yaz_log_file(void) { FILE *f = 0; @@ -137,7 +152,7 @@ void yaz_log_close(void) void yaz_log_init_file(const char *fname) { - internal_log_init(); + yaz_init_globals(); yaz_log_close(); if (fname) @@ -197,7 +212,7 @@ static void rotate_log(const char *cur_fname) void yaz_log_init_level(int level) { - internal_log_init(); + yaz_init_globals(); if ( (l_level & YLOG_FLUSH) != (level & YLOG_FLUSH) ) { l_level = level; @@ -250,7 +265,7 @@ void yaz_log_init_prefix2(const char *prefix) void yaz_log_init(int level, const char *prefix, const char *fname) { - internal_log_init(); + yaz_init_globals(); yaz_log_init_level(level); yaz_log_init_prefix(prefix); if (fname && *fname) @@ -317,13 +332,14 @@ static void yaz_log_open_check(struct tm *tm, int force, const char *filemode) #ifdef WIN32 yaz_log_close(); #endif - new_file = fopen(cur_filename, filemode); + if (!strncmp(cur_filename, "fd=", 3)) + new_file = fdopen(atoi(cur_filename + 3), filemode); + else + new_file = fopen(cur_filename, filemode); if (new_file) { yaz_log_close(); yaz_log_info.log_file = new_file; - if (l_level & YLOG_FLUSH) - setvbuf(yaz_log_info.log_file, 0, _IONBF, 0); } else { @@ -342,12 +358,14 @@ static void yaz_log_do_reopen(const char *filemode) struct tm *tm; #endif + yaz_log_lock(); #if HAVE_LOCALTIME_R localtime_r(&cur_time, tm); #else tm = localtime(&cur_time); #endif yaz_log_open_check(tm, 1, filemode); + yaz_log_unlock(); } @@ -367,7 +385,8 @@ static void yaz_strftime(char *dst, size_t sz, strftime(dst, sz, fmt, tm); } -static void yaz_log_to_file(int level, const char *log_message) +static void yaz_log_to_file(int level, const char *fmt, va_list ap, + const char *error_cp) { FILE *file; time_t ti = time(0); @@ -377,8 +396,7 @@ static void yaz_log_to_file(int level, const char *log_message) struct tm *tm; #endif - internal_log_init(); - + yaz_log_lock(); #if HAVE_LOCALTIME_R localtime_r(&ti, tm); #else @@ -430,51 +448,58 @@ static void yaz_log_to_file(int level, const char *log_message) strcat(tid, " "); } - fprintf(file, "%s%s%s%s %s%s\n", tbuf, yaz_log_info.l_prefix, - tid, flags, yaz_log_info.l_prefix2, - log_message); + fprintf(file, "%s%s%s%s %s", tbuf, yaz_log_info.l_prefix, + tid, flags, yaz_log_info.l_prefix2); + vfprintf(file, fmt, ap); + if (error_cp) + fprintf(file, " [%s]", error_cp); + fputs("\n", file); if (l_level & YLOG_FLUSH) fflush(file); } + yaz_log_unlock(); } void yaz_log(int level, const char *fmt, ...) { va_list ap; - char buf[4096]; FILE *file; int o_level = level; + char *error_cp = 0, error_buf[128]; - internal_log_init(); + if (o_level & YLOG_ERRNO) + { + yaz_strerror(error_buf, sizeof(error_buf)); + error_cp = error_buf; + } + yaz_init_globals(); if (!(level & l_level)) return; va_start(ap, fmt); - /* 30 is enough for our 'rest of output' message */ - yaz_vsnprintf(buf, sizeof(buf)-30, fmt, ap); - if (strlen(buf) >= sizeof(buf)-31) - strcat(buf, " [rest of output omitted]"); - - if (o_level & YLOG_ERRNO) + file = yaz_log_file(); + if (start_hook_func || hook_func || end_hook_func) { - size_t remain = sizeof(buf) - strlen(buf); - if (remain > 100) /* reasonable minimum space for error */ - { - strcat(buf, " ["); - yaz_strerror(buf+strlen(buf), remain-5); /* 5 due to extra [] */ - strcat(buf, "]"); - } + char buf[1024]; + /* 30 is enough for our 'rest of output' message */ + yaz_vsnprintf(buf, sizeof(buf)-30, fmt, ap); + if (strlen(buf) >= sizeof(buf)-31) + strcat(buf, " [rest of output omitted]"); + if (start_hook_func) + (*start_hook_func)(o_level, buf, start_hook_info); + if (hook_func) + (*hook_func)(o_level, buf, hook_info); + if (file) + yaz_log_to_file(level, fmt, ap, error_cp); + if (end_hook_func) + (*end_hook_func)(o_level, buf, end_hook_info); } - va_end (ap); - if (start_hook_func) - (*start_hook_func)(o_level, buf, start_hook_info); - if (hook_func) - (*hook_func)(o_level, buf, hook_info); - file = yaz_log_file(); - if (file) - yaz_log_to_file(level, buf); - if (end_hook_func) - (*end_hook_func)(o_level, buf, end_hook_info); + else + { + if (file) + yaz_log_to_file(level, fmt, ap, error_cp); + } + va_end(ap); } void yaz_log_time_format(const char *fmt) @@ -539,7 +564,7 @@ int yaz_log_module_level(const char *name) int i; char clean[255]; char *n = clean_name(name, strlen(name), clean, sizeof(clean)); - internal_log_init(); + yaz_init_globals(); for (i = 0; mask_names[i].name; i++) if (0==strcmp(n, mask_names[i].name)) @@ -556,15 +581,16 @@ int yaz_log_module_level(const char *name) int yaz_log_mask_str(const char *str) { - internal_log_init(); /* since l_level may be affected */ + yaz_init_globals(); /* since l_level may be affected */ return yaz_log_mask_str_x(str, l_level); } +/* this function is called by yaz_log_init_globals & yaz_init_globals + and, thus, may not call any of them indirectly */ int yaz_log_mask_str_x(const char *str, int level) { const char *p; - internal_log_init(); while (*str) { int negated = 0;