diff options
Diffstat (limited to 'src/php/ext/grpc/channel.c')
-rw-r--r-- | src/php/ext/grpc/channel.c | 137 |
1 files changed, 114 insertions, 23 deletions
diff --git a/src/php/ext/grpc/channel.c b/src/php/ext/grpc/channel.c index dc3acc89bb..4054723b43 100644 --- a/src/php/ext/grpc/channel.c +++ b/src/php/ext/grpc/channel.c @@ -41,6 +41,7 @@ #include <grpc/grpc.h> #include <grpc/grpc_security.h> +#include <grpc/support/alloc.h> #include "completion_queue.h" #include "channel_credentials.h" @@ -56,22 +57,63 @@ int le_plink; /* Frees and destroys an instance of wrapped_grpc_channel */ PHP_GRPC_FREE_WRAPPED_FUNC_START(wrapped_grpc_channel) + bool is_last_wrapper = false; + // In_persistent_list is used when the user don't close the channel. + // In this case, le in the list won't be freed. + bool in_persistent_list = true; if (p->wrapper != NULL) { gpr_mu_lock(&p->wrapper->mu); if (p->wrapper->wrapped != NULL) { - php_grpc_zend_resource *rsrc; - php_grpc_int key_len = strlen(p->wrapper->key); - // only destroy the channel here if not found in the persistent list - gpr_mu_lock(&global_persistent_list_mu); - if (!(PHP_GRPC_PERSISTENT_LIST_FIND(&EG(persistent_list), p->wrapper->key, - key_len, rsrc))) { - grpc_channel_destroy(p->wrapper->wrapped); - free(p->wrapper->target); - free(p->wrapper->args_hashstr); + if (p->wrapper->is_valid) { + php_grpc_zend_resource *rsrc; + php_grpc_int key_len = strlen(p->wrapper->key); + // only destroy the channel here if not found in the persistent list + gpr_mu_lock(&global_persistent_list_mu); + if (!(PHP_GRPC_PERSISTENT_LIST_FIND(&EG(persistent_list), p->wrapper->key, + key_len, rsrc))) { + in_persistent_list = false; + grpc_channel_destroy(p->wrapper->wrapped); + free(p->wrapper->target); + free(p->wrapper->args_hashstr); + if(p->wrapper->creds_hashstr != NULL){ + free(p->wrapper->creds_hashstr); + p->wrapper->creds_hashstr = NULL; + } + } + gpr_mu_unlock(&global_persistent_list_mu); } - gpr_mu_unlock(&global_persistent_list_mu); + } + p->wrapper->ref_count -= 1; + if (p->wrapper->ref_count == 0) { + is_last_wrapper = true; } gpr_mu_unlock(&p->wrapper->mu); + if (is_last_wrapper) { + if (in_persistent_list) { + // If ref_count==0 and the key still in the list, it means the user + // don't call channel->close().persistent list should free the + // allocation in such case, as well as related wrapped channel. + if (p->wrapper->wrapped != NULL) { + gpr_mu_lock(&p->wrapper->mu); + grpc_channel_destroy(p->wrapper->wrapped); + free(p->wrapper->target); + free(p->wrapper->args_hashstr); + if(p->wrapper->creds_hashstr != NULL){ + free(p->wrapper->creds_hashstr); + p->wrapper->creds_hashstr = NULL; + } + p->wrapper->wrapped = NULL; + php_grpc_delete_persistent_list_entry(p->wrapper->key, + strlen(p->wrapper->key) + TSRMLS_CC); + gpr_mu_unlock(&p->wrapper->mu); + } + } + gpr_mu_destroy(&p->wrapper->mu); + free(p->wrapper->key); + free(p->wrapper); + } + p->wrapper = NULL; } PHP_GRPC_FREE_WRAPPED_FUNC_END() @@ -242,6 +284,7 @@ PHP_METHOD(Channel, __construct) { // parse the rest of the channel args array if (php_grpc_read_args_array(args_array, &args TSRMLS_CC) == FAILURE) { + efree(args.args); return; } @@ -275,9 +318,16 @@ PHP_METHOD(Channel, __construct) { channel->wrapper->key = key; channel->wrapper->target = strdup(target); channel->wrapper->args_hashstr = strdup(sha1str); + channel->wrapper->creds_hashstr = NULL; + channel->wrapper->ref_count = 1; + channel->wrapper->is_valid = true; if (creds != NULL && creds->hashstr != NULL) { - channel->wrapper->creds_hashstr = creds->hashstr; + php_grpc_int creds_hashstr_len = strlen(creds->hashstr); + char *channel_creds_hashstr = malloc(creds_hashstr_len + 1); + strcpy(channel_creds_hashstr, creds->hashstr); + channel->wrapper->creds_hashstr = channel_creds_hashstr; } + gpr_mu_init(&channel->wrapper->mu); smart_str_free(&buf); @@ -301,7 +351,18 @@ PHP_METHOD(Channel, __construct) { create_and_add_channel_to_persistent_list( channel, target, args, creds, key, key_len TSRMLS_CC); } else { + efree(args.args); + if (channel->wrapper->creds_hashstr != NULL){ + free(channel->wrapper->creds_hashstr); + channel->wrapper->creds_hashstr = NULL; + } + free(channel->wrapper->creds_hashstr); + free(channel->wrapper->key); + free(channel->wrapper->target); + free(channel->wrapper->args_hashstr); + free(channel->wrapper); channel->wrapper = le->channel; + channel->wrapper->ref_count += 1; } } } @@ -321,7 +382,8 @@ PHP_METHOD(Channel, getTarget) { } char *target = grpc_channel_get_target(channel->wrapper->wrapped); gpr_mu_unlock(&channel->wrapper->mu); - PHP_GRPC_RETURN_STRING(target, 1); + PHP_GRPC_RETVAL_STRING(target, 1); + gpr_free(target); } /** @@ -409,18 +471,46 @@ PHP_METHOD(Channel, watchConnectivityState) { */ PHP_METHOD(Channel, close) { wrapped_grpc_channel *channel = Z_WRAPPED_GRPC_CHANNEL_P(getThis()); - gpr_mu_lock(&channel->wrapper->mu); - if (channel->wrapper->wrapped != NULL) { - grpc_channel_destroy(channel->wrapper->wrapped); - free(channel->wrapper->target); - free(channel->wrapper->args_hashstr); - channel->wrapper->wrapped = NULL; - - php_grpc_delete_persistent_list_entry(channel->wrapper->key, - strlen(channel->wrapper->key) - TSRMLS_CC); + bool is_last_wrapper = false; + if (channel->wrapper != NULL) { + // Channel_wrapper hasn't call close before. + gpr_mu_lock(&channel->wrapper->mu); + if (channel->wrapper->wrapped != NULL) { + if (channel->wrapper->is_valid) { + // Wrapped channel hasn't been destoryed by other wrapper. + grpc_channel_destroy(channel->wrapper->wrapped); + free(channel->wrapper->target); + free(channel->wrapper->args_hashstr); + if(channel->wrapper->creds_hashstr != NULL){ + free(channel->wrapper->creds_hashstr); + channel->wrapper->creds_hashstr = NULL; + } + channel->wrapper->wrapped = NULL; + channel->wrapper->is_valid = false; + + php_grpc_delete_persistent_list_entry(channel->wrapper->key, + strlen(channel->wrapper->key) + TSRMLS_CC); + } + } + channel->wrapper->ref_count -= 1; + if(channel->wrapper->ref_count == 0){ + // Mark that the wrapper can be freed because mu should be + // destroyed outside the lock. + is_last_wrapper = true; + } + gpr_mu_unlock(&channel->wrapper->mu); } - gpr_mu_unlock(&channel->wrapper->mu); + gpr_mu_lock(&global_persistent_list_mu); + if (is_last_wrapper) { + gpr_mu_destroy(&channel->wrapper->mu); + free(channel->wrapper->key); + free(channel->wrapper); + } + // Set channel->wrapper to NULL to avoid call close twice for the same + // channel. + channel->wrapper = NULL; + gpr_mu_unlock(&global_persistent_list_mu); } // Delete an entry from the persistent list @@ -435,6 +525,7 @@ void php_grpc_delete_persistent_list_entry(char *key, php_grpc_int key_len le = (channel_persistent_le_t *)rsrc->ptr; le->channel = NULL; php_grpc_zend_hash_del(&EG(persistent_list), key, key_len+1); + free(le); } gpr_mu_unlock(&global_persistent_list_mu); } |