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Direktori : /home2/selectio/www/myclassicfit.com-1/vendor/aws/aws-crt-php/ext/ |
Current File : /home2/selectio/www/myclassicfit.com-1/vendor/aws/aws-crt-php/ext/crt.c |
/** * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. * SPDX-License-Identifier: Apache-2.0. */ #include "php_aws_crt.h" /* Helpful references for this extension: * zend_parse_parameters and friends - * https://git.php.net/?p=php-src.git;a=blob;f=docs/parameter-parsing-api.md;h=c962fc6ee58cc756aaac9e65759b7d5ea5c18fc4;hb=HEAD * https://git.php.net/?p=php-src.git;a=blob;f=docs/self-contained-extensions.md;h=47f4c636baca8ca195118e2cc234ac7fd2842c1b;hb=HEAD * Threads: * http://blog.jpauli.tech/2017-01-12-threads-and-php-html/ * Examples: * Curl extension: https://github.com/php/php-src/blob/PHP-5.6/ext/curl/interface.c * libuv extension: https://github.com/amphp/ext-uv/blob/master/php_uv.c */ zval aws_php_invoke_callback(zval *callback, const char *arg_types, ...) { char *error = NULL; zend_fcall_info fci = {0}; zend_fcall_info_cache fcc = empty_fcall_info_cache; if (zend_fcall_info_init(callback, IS_CALLABLE_CHECK_SYNTAX_ONLY, &fci, &fcc, NULL, &error) == FAILURE) { aws_php_throw_exception("Unable to initialize callback from callable via zend_fcall_info_init: %s", error); } /* Allocate the stack frame of zval arguments and fill them in */ const size_t num_args = strlen(arg_types); zval *stack = alloca(sizeof(zval) * num_args); int arg_idx = 0; va_list va; va_start(va, arg_types); while (arg_idx < num_args) { const char arg_type = arg_types[arg_idx]; switch (arg_type) { /* zval types */ case 'a': case 'A': case 'n': case 'o': case 'r': case 'z': { zval *zval_val = va_arg(va, zval *); ZVAL_ZVAL(&stack[arg_idx], zval_val, 0, 0); break; } /* buffers/strings (char *, size_t) */ case 'p': case 's': { const char *buf = va_arg(va, const char *); const size_t len = va_arg(va, size_t); aws_php_zval_stringl(&stack[arg_idx], buf, len); break; } /* other primitives */ case 'b': { zend_bool bool_val = va_arg(va, int); ZVAL_BOOL(&stack[arg_idx], bool_val); break; } case 'd': { double double_val = va_arg(va, double); ZVAL_DOUBLE(&stack[arg_idx], double_val); break; } case 'l': { zend_ulong long_val = va_arg(va, zend_ulong); ZVAL_LONG(&stack[arg_idx], long_val); break; } /* strings (zend_string), not supported in PHP 5.6, therefore not supported */ case 'P': case 'S': /* unsupported */ case 'C': case 'f': case 'h': case 'H': case 'O': aws_php_throw_exception("Unsupported argument type to aws_php_invoke_callback: %c", arg_type); break; default: aws_php_throw_exception("Unsupported argument type to aws_php_invoke_callback: %c", arg_type); break; } ++arg_idx; } va_end(va); /* set up the stack for the call */ #if AWS_PHP_AT_LEAST_7 zend_fcall_info_argp(&fci, num_args, stack); #else /* PHP5.6 may mutate the arguments due to coercion */ zval **arg_ptrs = alloca(sizeof(zval *) * num_args); zval ***args = alloca(sizeof(zval **) * num_args); for (int arg_idx = 0; arg_idx < num_args; ++arg_idx) { arg_ptrs[arg_idx] = &stack[arg_idx]; args[arg_idx] = &arg_ptrs[arg_idx]; } fci.param_count = num_args; fci.params = args; #endif zval retval; /* PHP5 allocates its own return value, 7+ uses an existing one we provide */ #if !AWS_PHP_AT_LEAST_7 zval *retval5 = NULL; fci.retval_ptr_ptr = &retval5; #else fci.retval = &retval; #endif if (zend_call_function(&fci, &fcc) == FAILURE) { aws_php_throw_exception("zend_call_function failed in aws_php_invoke_callback"); } #if !AWS_PHP_AT_LEAST_7 /* initialize the local retval from the retval in retval_ptr_ptr above */ if (retval5) { ZVAL_ZVAL(&retval, retval5, 1, 1); } #endif /* Clean up arguments */ #if AWS_PHP_AT_LEAST_7 zend_fcall_info_args_clear(&fci, 1); #endif return retval; } void aws_php_zval_stringl(zval *val, const char *str, size_t len) { AWS_FATAL_ASSERT(val != NULL); #if AWS_PHP_AT_LEAST_7 ZVAL_STRINGL(val, str, len); #else ZVAL_STRINGL(val, str, len, 1); #endif } aws_php_thread_queue s_aws_php_main_thread_queue; bool aws_php_is_main_thread(void) { return s_aws_php_main_thread_queue.thread_id == aws_thread_current_thread_id(); } void aws_php_thread_queue_init(aws_php_thread_queue *queue) { aws_mutex_init(&queue->mutex); memset(queue->queue, 0, sizeof(aws_php_task) * AWS_PHP_THREAD_QUEUE_MAX_DEPTH); queue->write_slot = 0; queue->thread_id = aws_thread_current_thread_id(); } void aws_php_thread_queue_clean_up(aws_php_thread_queue *queue) { assert(queue->write_slot == 0 && "aws_php_thread_queue cannot be cleaned up while queue is not empty"); aws_mutex_clean_up(&queue->mutex); } void aws_php_thread_queue_push(aws_php_thread_queue *queue, aws_php_task task) { aws_mutex_lock(&queue->mutex); assert(queue->write_slot < AWS_PHP_THREAD_QUEUE_MAX_DEPTH && "thread queue is full"); queue->queue[queue->write_slot++] = task; aws_mutex_unlock(&queue->mutex); } bool aws_php_thread_queue_drain(aws_php_thread_queue *queue) { assert( queue->thread_id == aws_thread_current_thread_id() && "thread queue cannot be drained from a thread other than its home"); aws_php_task drain_queue[AWS_PHP_THREAD_QUEUE_MAX_DEPTH]; aws_mutex_lock(&queue->mutex); /* copy any queued tasks into the drain queue, then reset the queue */ memcpy(drain_queue, queue->queue, sizeof(aws_php_task) * AWS_PHP_THREAD_QUEUE_MAX_DEPTH); memset(queue->queue, 0, sizeof(aws_php_task) * AWS_PHP_THREAD_QUEUE_MAX_DEPTH); queue->write_slot = 0; aws_mutex_unlock(&queue->mutex); bool did_work = false; for (int idx = 0; idx < AWS_PHP_THREAD_QUEUE_MAX_DEPTH; ++idx) { aws_php_task *task = &drain_queue[idx]; if (!task->callback) { break; } did_work = true; task->callback(task->data); if (task->dtor) { task->dtor(task->data); } } return did_work; } /* called on main thread after delivery */ static void s_thread_queue_complete_promise(void *data) { struct aws_promise *promise = data; aws_promise_complete(promise, NULL, NULL); } /* called from worker thread to wait for the main thread to execute any queued work in PHP */ void aws_php_thread_queue_yield(aws_php_thread_queue *queue) { /* If on the main thread, then just drain the queue */ if (aws_php_is_main_thread()) { aws_php_thread_queue_drain(queue); } else { /* push a task onto the end of the queue, we will return once this task completes our promise */ struct aws_promise *queue_drained = aws_promise_new(aws_crt_default_allocator()); aws_php_task queue_drained_task = { .callback = s_thread_queue_complete_promise, .data = queue_drained, }; aws_php_thread_queue_push(queue, queue_drained_task); aws_promise_wait(queue_drained); aws_promise_release(queue_drained); } } /* called from PHP thread to wait on async queued jobs, one of which should complete the promise */ void aws_php_thread_queue_wait(aws_php_thread_queue *queue, struct aws_promise *promise) { while (!aws_promise_is_complete(promise)) { aws_php_thread_queue_drain(queue); } } ZEND_DECLARE_MODULE_GLOBALS(awscrt); PHP_INI_BEGIN() STD_PHP_INI_ENTRY( "awscrt.log_level", "", PHP_INI_ALL, OnUpdateLongGEZero, log_level, zend_awscrt_globals, awscrt_globals) PHP_INI_END() static PHP_MINIT_FUNCTION(awscrt) { REGISTER_INI_ENTRIES(); /* prevent s2n from initializing/de-initializing OpenSSL/libcrypto */ aws_crt_crypto_share(); aws_crt_init(); aws_php_thread_queue_init(&s_aws_php_main_thread_queue); return SUCCESS; } static PHP_MSHUTDOWN_FUNCTION(awscrt) { UNREGISTER_INI_ENTRIES(); aws_php_thread_queue_clean_up(&s_aws_php_main_thread_queue); aws_crt_thread_join_all(0); aws_crt_clean_up(); return SUCCESS; } static PHP_GINIT_FUNCTION(awscrt) { #if defined(COMPILE_DL_ASTKIT) && defined(ZTS) ZEND_TSRMLS_CACHE_UPDATE(); #endif awscrt_globals->log_level = 0; } zend_module_entry awscrt_module_entry = { STANDARD_MODULE_HEADER, "awscrt", ext_functions, /* functions */ PHP_MINIT(awscrt), PHP_MSHUTDOWN(awscrt), NULL, /* RINIT */ NULL, /* RSHUTDOWN */ NULL, /* MINFO */ NO_VERSION_YET, PHP_MODULE_GLOBALS(awscrt), PHP_GINIT(awscrt), NULL, /* GSHUTDOWN */ NULL, /* RPOSTSHUTDOWN */ STANDARD_MODULE_PROPERTIES_EX, }; #ifdef COMPILE_DL_AWSCRT ZEND_GET_MODULE(awscrt) #endif /* aws_crt_last_error() */ PHP_FUNCTION(aws_crt_last_error) { RETURN_LONG(aws_crt_last_error()); } /* aws_crt_error_str(int error_code) */ PHP_FUNCTION(aws_crt_error_str) { zend_ulong error_code = 0; aws_php_parse_parameters("l", &error_code); XRETURN_STRING(aws_crt_error_str(error_code)); } /* aws_crt_error_name(int error_code) */ PHP_FUNCTION(aws_crt_error_name) { zend_ulong error_code = 0; aws_php_parse_parameters("l", &error_code); XRETURN_STRING(aws_crt_error_name(error_code)); } /* aws_crt_error_debug_str(int error_code) */ PHP_FUNCTION(aws_crt_error_debug_str) { zend_ulong error_code = 0; aws_php_parse_parameters("l", &error_code); XRETURN_STRING(aws_crt_error_debug_str(error_code)); }