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id generator for multi processes

pull/10/head
Yuqing 2016-04-10 17:44:10 +08:00
parent 8104af5d27
commit b16e56b9a3
4 changed files with 18 additions and 11 deletions
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2
HISTORY
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@ -1,5 +1,5 @@
Version 1.27 2016-04-09 Version 1.27 2016-04-10
* add function fd_set_cloexec * add function fd_set_cloexec
* php-fastcommon.spec.in support PHP 7 * php-fastcommon.spec.in support PHP 7
* add file lock and unlock functions * add file lock and unlock functions

11
src/id_generator.c
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@ -69,10 +69,10 @@ int id_generator_init_ex(struct idg_context *context, const char *filename,
return EINVAL; return EINVAL;
} }
printf("ip_addr: %s, s_addr: %08X\n", local_ip, ip_addr.s_addr); logDebug("ip_addr: %s, s_addr: %08X, mask number: %08X",
printf("mask number: %08X\n", (1 << mid_bits)); local_ip, ip_addr.s_addr, (1 << mid_bits));
mid = (ip_addr.s_addr >> (32 - mid_bits)) & ((1 << mid_bits) - 1); mid = ntohl(ip_addr.s_addr) & ((1 << mid_bits) - 1);
} }
if ((context->fd = open(filename, O_RDWR | O_CREAT, 0644)) < 0) if ((context->fd = open(filename, O_RDWR | O_CREAT, 0644)) < 0)
@ -91,7 +91,8 @@ int id_generator_init_ex(struct idg_context *context, const char *filename,
context->masked_mid = ((int64_t)mid) << context->sn_bits; context->masked_mid = ((int64_t)mid) << context->sn_bits;
context->sn_mask = ((int64_t)1 << context->sn_bits) - 1; context->sn_mask = ((int64_t)1 << context->sn_bits) - 1;
printf("mid: %08X, masked_mid: %016llX, sn_mask: %08llX\n", mid, context->masked_mid, context->sn_mask); logDebug("mid: %08X, masked_mid: %016llX, sn_mask: %08llX\n",
mid, context->masked_mid, context->sn_mask);
return 0; return 0;
} }
@ -171,7 +172,7 @@ int id_generator_next(struct idg_context *context, int64_t *id)
file_unlock(context->fd); file_unlock(context->fd);
*id = (time(NULL) << 32) | context->masked_mid | (sn & context->sn_mask); *id = (((int64_t)time(NULL)) << 32) | context->masked_mid | (sn & context->sn_mask);
return result; return result;
} }

5
src/logger.c
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@ -714,7 +714,10 @@ static void* log_gzip_func(void *args)
snprintf(full_filename, sizeof(full_filename), "%s%s", snprintf(full_filename, sizeof(full_filename), "%s%s",
log_filepath, filename_array.filenames[i]); log_filepath, filename_array.filenames[i]);
snprintf(cmd, sizeof(cmd), "%s %s", gzip, full_filename); snprintf(cmd, sizeof(cmd), "%s %s", gzip, full_filename);
system(cmd); if (system(cmd) == -1)
{
fprintf(stderr, "execute %s fail\n", cmd);
}
} }
log_free_filename_array(&filename_array); log_free_filename_array(&filename_array);

11
src/tests/test_id_generator.c
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@ -22,6 +22,9 @@ int main(int argc, char *argv[])
int64_t id; int64_t id;
const int machine_id = 0; const int machine_id = 0;
const int mid_bits = 8; const int mid_bits = 8;
log_init();
//g_log_context.log_level = LOG_DEBUG;
result = id_generator_init_ex(&context, "/tmp/sn.txt", result = id_generator_init_ex(&context, "/tmp/sn.txt",
machine_id, mid_bits); machine_id, mid_bits);
@ -30,17 +33,17 @@ int main(int argc, char *argv[])
return result; return result;
} }
id_generator_next(&context, &id); //id_generator_next(&context, &id);
printf("id: %"PRId64", %016llX\n", id, id); //printf("id: %"PRId64", %016llX\n", id, id);
for (i=0; i<1000000; i++) for (i=0; i<100000; i++)
{ {
result = id_generator_next(&context, &id); result = id_generator_next(&context, &id);
if (result != 0) if (result != 0)
{ {
break; break;
} }
printf("%"PRId64", %016llX\n", id, id);
} }
printf("id: %"PRId64", %016llX\n", id, id);
id_generator_destroy(&context); id_generator_destroy(&context);
return 0; return 0;