diff options
Diffstat (limited to 'tests/modules/blockedclient.c')
-rw-r--r-- | tests/modules/blockedclient.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/tests/modules/blockedclient.c b/tests/modules/blockedclient.c index 3e97d6779..a2d7c6d00 100644 --- a/tests/modules/blockedclient.c +++ b/tests/modules/blockedclient.c @@ -1,3 +1,8 @@ +/* define macros for having usleep */ +#define _BSD_SOURCE +#define _DEFAULT_SOURCE +#include <unistd.h> + #include "redismodule.h" #include <assert.h> #include <stdio.h> @@ -5,6 +10,10 @@ #define UNUSED(V) ((void) V) +/* used to test processing events during slow bg operation */ +static volatile int g_slow_bg_operation = 0; +static volatile int g_is_in_slow_bg_operation = 0; + void *sub_worker(void *arg) { // Get Redis module context RedisModuleCtx *ctx = (RedisModuleCtx *)arg; @@ -99,6 +108,16 @@ void *bg_call_worker(void *arg) { // Acquire GIL RedisModule_ThreadSafeContextLock(ctx); + // Test slow operation yielding + if (g_slow_bg_operation) { + g_is_in_slow_bg_operation = 1; + while (g_slow_bg_operation) { + RedisModule_Yield(ctx, REDISMODULE_YIELD_FLAG_CLIENTS, "Slow module operation"); + usleep(1000); + } + g_is_in_slow_bg_operation = 0; + } + // Call the command const char* cmd = RedisModule_StringPtrLen(bg->argv[1], NULL); RedisModuleCallReply* rep = RedisModule_Call(ctx, cmd, "v", bg->argv + 2, bg->argc - 2); @@ -203,6 +222,73 @@ int do_fake_bg_true(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) { return REDISMODULE_OK; } + +/* this flag is used to work with busy commands, that might take a while + * and ability to stop the busy work with a different command*/ +static volatile int abort_flag = 0; + +int slow_fg_command(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) { + if (argc != 2) { + RedisModule_WrongArity(ctx); + return REDISMODULE_OK; + } + long long block_time = 0; + if (RedisModule_StringToLongLong(argv[1], &block_time) != REDISMODULE_OK) { + RedisModule_ReplyWithError(ctx, "Invalid integer value"); + return REDISMODULE_OK; + } + + uint64_t start_time = RedisModule_MonotonicMicroseconds(); + /* when not blocking indefinitely, we don't process client commands in this test. */ + int yield_flags = block_time? REDISMODULE_YIELD_FLAG_NONE: REDISMODULE_YIELD_FLAG_CLIENTS; + while (!abort_flag) { + RedisModule_Yield(ctx, yield_flags, "Slow module operation"); + usleep(1000); + if (block_time && RedisModule_MonotonicMicroseconds() - start_time > (uint64_t)block_time) + break; + } + + abort_flag = 0; + RedisModule_ReplyWithLongLong(ctx, 1); + return REDISMODULE_OK; +} + +int stop_slow_fg_command(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) { + REDISMODULE_NOT_USED(argv); + REDISMODULE_NOT_USED(argc); + abort_flag = 1; + RedisModule_ReplyWithLongLong(ctx, 1); + return REDISMODULE_OK; +} + +/* used to enable or disable slow operation in do_bg_rm_call */ +static int set_slow_bg_operation(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) { + if (argc != 2) { + RedisModule_WrongArity(ctx); + return REDISMODULE_OK; + } + long long ll; + if (RedisModule_StringToLongLong(argv[1], &ll) != REDISMODULE_OK) { + RedisModule_ReplyWithError(ctx, "Invalid integer value"); + return REDISMODULE_OK; + } + g_slow_bg_operation = ll; + RedisModule_ReplyWithSimpleString(ctx, "OK"); + return REDISMODULE_OK; +} + +/* used to test if we reached the slow operation in do_bg_rm_call */ +static int is_in_slow_bg_operation(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) { + UNUSED(argv); + if (argc != 1) { + RedisModule_WrongArity(ctx); + return REDISMODULE_OK; + } + + RedisModule_ReplyWithLongLong(ctx, g_is_in_slow_bg_operation); + return REDISMODULE_OK; +} + int RedisModule_OnLoad(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) { REDISMODULE_NOT_USED(argv); REDISMODULE_NOT_USED(argc); @@ -223,5 +309,17 @@ int RedisModule_OnLoad(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) if (RedisModule_CreateCommand(ctx, "do_fake_bg_true", do_fake_bg_true, "", 0, 0, 0) == REDISMODULE_ERR) return REDISMODULE_ERR; + if (RedisModule_CreateCommand(ctx, "slow_fg_command", slow_fg_command,"", 0, 0, 0) == REDISMODULE_ERR) + return REDISMODULE_ERR; + + if (RedisModule_CreateCommand(ctx, "stop_slow_fg_command", stop_slow_fg_command,"allow-busy", 0, 0, 0) == REDISMODULE_ERR) + return REDISMODULE_ERR; + + if (RedisModule_CreateCommand(ctx, "set_slow_bg_operation", set_slow_bg_operation, "allow-busy", 0, 0, 0) == REDISMODULE_ERR) + return REDISMODULE_ERR; + + if (RedisModule_CreateCommand(ctx, "is_in_slow_bg_operation", is_in_slow_bg_operation, "allow-busy", 0, 0, 0) == REDISMODULE_ERR) + return REDISMODULE_ERR; + return REDISMODULE_OK; } |