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Add RedisModule_Log() logging API function.

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This commit is contained in:
Yossi Gottlieb 2016-06-15 16:27:16 +03:00 committed by antirez
parent b507289750
commit 715794b829
3 changed files with 42 additions and 0 deletions
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25
src/module.c
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@ -2768,6 +2768,30 @@ void RM_EmitAOF(RedisModuleIO *io, const char *cmdname, const char *fmt, ...) {
return;
}
/* --------------------------------------------------------------------------
* Logging
* -------------------------------------------------------------------------- */
/* Produces a log message to the standard Redis log. */
void RM_Log(RedisModuleCtx *ctx, int level, const char *fmt, ...)
{
va_list ap;
char msg[LOG_MAX_LEN];
size_t name_len;
if ((level&0xff) < server.verbosity) return;
if (!ctx->module) return; /* Can only log if module is initialized */
name_len = snprintf(msg, sizeof(msg),"%s: ", ctx->module->name);
va_start(ap, fmt);
vsnprintf(msg + name_len, sizeof(msg) - name_len, fmt, ap);
va_end(ap);
serverLogRaw(level,msg);
}
/* --------------------------------------------------------------------------
* Modules API internals
* -------------------------------------------------------------------------- */
@ -2886,6 +2910,7 @@ void moduleRegisterCoreAPI(void) {
REGISTER_API(SaveDouble);
REGISTER_API(LoadDouble);
REGISTER_API(EmitAOF);
REGISTER_API(Log);
}
/* Global initialization at Redis startup. */

8
src/modules/API.md
View File

@ -1115,3 +1115,11 @@ by a module. The command works exactly like `RedisModule_Call()` in the way
the parameters are passed, but it does not return anything as the error
handling is performed by Redis itself.
## `RM_Log`
void RM_Log(RedisModuleCtx *ctx, int level, const char *fmt, ...);
Produce a log message into the standard Redis log. All standard Redis logging
configuration applies here. Messages can only be logged after a module has
initialized, and are prefixed by the name of the module. Log level is
specified using the REDISMODULE_LOG_* macros.

9
src/redismodule.h
View File

@ -68,6 +68,13 @@
#define REDISMODULE_POSITIVE_INFINITE (1.0/0.0)
#define REDISMODULE_NEGATIVE_INFINITE (-1.0/0.0)
/* Logging levels */
#define REDISMODULE_LOG_DEBUG 0
#define REDISMODULE_LOG_VERBOSE 1
#define REDISMODULE_LOG_NOTICE 2
#define REDISMODULE_LOG_WARNING 3
/* ------------------------- End of common defines ------------------------ */
#ifndef REDISMODULE_CORE
@ -180,6 +187,7 @@ RedisModuleString *REDISMODULE_API_FUNC(RedisModule_LoadString)(RedisModuleIO *i
char *REDISMODULE_API_FUNC(RedisModule_LoadStringBuffer)(RedisModuleIO *io, size_t *lenptr);
void REDISMODULE_API_FUNC(RedisModule_SaveDouble)(RedisModuleIO *io, double value);
double REDISMODULE_API_FUNC(RedisModule_LoadDouble)(RedisModuleIO *io);
void REDISMODULE_API_FUNC(RedisModule_Log)(RedisModuleCtx *ctx, int level, const char *fmt, ...);
/* This is included inline inside each Redis module. */
static int RedisModule_Init(RedisModuleCtx *ctx, const char *name, int ver, int apiver) __attribute__((unused));
@ -270,6 +278,7 @@ static int RedisModule_Init(RedisModuleCtx *ctx, const char *name, int ver, int
REDISMODULE_GET_API(SaveDouble);
REDISMODULE_GET_API(LoadDouble);
REDISMODULE_GET_API(EmitAOF);
REDISMODULE_GET_API(Log);
RedisModule_SetModuleAttribs(ctx,name,ver,apiver);
return REDISMODULE_OK;