diff options
Diffstat (limited to 'src/spdk/lib/log/log_flags.c')
| -rw-r--r-- | src/spdk/lib/log/log_flags.c | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/src/spdk/lib/log/log_flags.c b/src/spdk/lib/log/log_flags.c new file mode 100644 index 00000000..1b766c44 --- /dev/null +++ b/src/spdk/lib/log/log_flags.c @@ -0,0 +1,196 @@ +/*- + * BSD LICENSE + * + * Copyright (c) Intel Corporation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "spdk/stdinc.h" + +#include "spdk_internal/log.h" + +static TAILQ_HEAD(, spdk_trace_flag) g_trace_flags = TAILQ_HEAD_INITIALIZER(g_trace_flags); + +enum spdk_log_level g_spdk_log_level = SPDK_LOG_NOTICE; +enum spdk_log_level g_spdk_log_print_level = SPDK_LOG_NOTICE; +enum spdk_log_level g_spdk_log_backtrace_level = SPDK_LOG_DISABLED; + +SPDK_LOG_REGISTER_COMPONENT("log", SPDK_LOG_LOG) + +#define MAX_TMPBUF 1024 + +void +spdk_log_set_level(enum spdk_log_level level) +{ + g_spdk_log_level = level; +} + +enum spdk_log_level +spdk_log_get_level(void) { + return g_spdk_log_level; +} + +void +spdk_log_set_print_level(enum spdk_log_level level) +{ + g_spdk_log_print_level = level; +} + +enum spdk_log_level +spdk_log_get_print_level(void) { + return g_spdk_log_print_level; +} + +void +spdk_log_set_backtrace_level(enum spdk_log_level level) +{ + g_spdk_log_backtrace_level = level; +} + +enum spdk_log_level +spdk_log_get_backtrace_level(void) { + return g_spdk_log_backtrace_level; +} + +static struct spdk_trace_flag * +get_trace_flag(const char *name) +{ + struct spdk_trace_flag *flag; + + TAILQ_FOREACH(flag, &g_trace_flags, tailq) { + if (strcasecmp(name, flag->name) == 0) { + return flag; + } + } + + return NULL; +} + +void +spdk_log_register_trace_flag(const char *name, struct spdk_trace_flag *flag) +{ + struct spdk_trace_flag *iter; + + if (name == NULL || flag == NULL) { + SPDK_ERRLOG("missing spdk_trace_flag parameters\n"); + assert(false); + return; + } + + if (get_trace_flag(name)) { + SPDK_ERRLOG("duplicate spdk_trace_flag '%s'\n", name); + assert(false); + return; + } + + TAILQ_FOREACH(iter, &g_trace_flags, tailq) { + if (strcasecmp(iter->name, flag->name) > 0) { + TAILQ_INSERT_BEFORE(iter, flag, tailq); + return; + } + } + + TAILQ_INSERT_TAIL(&g_trace_flags, flag, tailq); +} + +bool +spdk_log_get_trace_flag(const char *name) +{ + struct spdk_trace_flag *flag = get_trace_flag(name); + + if (flag && flag->enabled) { + return true; + } + + return false; +} + +static int +set_trace_flag(const char *name, bool value) +{ + struct spdk_trace_flag *flag; + + if (strcasecmp(name, "all") == 0) { + TAILQ_FOREACH(flag, &g_trace_flags, tailq) { + flag->enabled = value; + } + return 0; + } + + flag = get_trace_flag(name); + if (flag == NULL) { + return -1; + } + + flag->enabled = value; + + return 0; +} + +int +spdk_log_set_trace_flag(const char *name) +{ + return set_trace_flag(name, true); +} + +int +spdk_log_clear_trace_flag(const char *name) +{ + return set_trace_flag(name, false); +} + +struct spdk_trace_flag * +spdk_log_get_first_trace_flag(void) +{ + return TAILQ_FIRST(&g_trace_flags); +} + +struct spdk_trace_flag * +spdk_log_get_next_trace_flag(struct spdk_trace_flag *flag) +{ + return TAILQ_NEXT(flag, tailq); +} + +void +spdk_tracelog_usage(FILE *f, const char *trace_arg) +{ +#ifdef DEBUG + struct spdk_trace_flag *flag; + fprintf(f, " %s, --traceflag <flag> enable debug log flag (all", trace_arg); + + TAILQ_FOREACH(flag, &g_trace_flags, tailq) { + fprintf(f, ", %s", flag->name); + } + + fprintf(f, ")\n"); +#else + fprintf(f, " %s, --traceflag <flag> enable debug log flag (not supported" + " - must rebuild with --enable-debug)\n", trace_arg); +#endif +} |