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php_uv.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2012 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Shuhei Tanuma <chobieeee@php.net> |
| Bob Weinand <bobwei9@hotmail.com> |
+----------------------------------------------------------------------+
*/
#pragma GCC diagnostic ignored "-Wmissing-braces"
#include "php_uv.h"
#include "php_main.h"
#include "ext/standard/info.h"
#include "zend_smart_str.h"
#ifndef PHP_UV_DEBUG
#define PHP_UV_DEBUG 0
#endif
#if defined(ZTS)
#undef TSRMLS_C
#undef TSRMLS_CC
#undef TSRMLS_D
#undef TSRMLS_DC
#undef TSRMLS_FETCH_FROM_CTX
#undef TSRMLS_SET_CTX
#define TSRMLS_C tsrm_ls
#define TSRMLS_CC , TSRMLS_C
#define TSRMLS_D void *tsrm_ls
#define TSRMLS_DC , TSRMLS_D
#define TSRMLS_FETCH_FROM_CTX(ctx) void ***tsrm_ls = (void ***)ctx
#define TSRMLS_SET_CTX(ctx) ctx = (void ***)tsrm_get_ls_cache()
#ifdef COMPILE_DL_UV
ZEND_TSRMLS_CACHE_DEFINE()
#endif
#endif
ZEND_DECLARE_MODULE_GLOBALS(uv);
#ifndef GC_ADDREF
#define GC_ADDREF(ref) ++GC_REFCOUNT(ref)
#endif
#if PHP_VERSION_ID < 70100
#define uv_zend_wrong_parameter_class_error(throw, ...) zend_wrong_paramer_class_error(__VA_ARGS__)
#elif PHP_VERSION_ID < 70200 || PHP_VERSION_ID >= 70300
#define uv_zend_wrong_parameter_class_error(throw, ...) zend_wrong_parameter_class_error(__VA_ARGS__)
#else
#define uv_zend_wrong_parameter_class_error(...) zend_wrong_parameter_class_error(__VA_ARGS__)
#endif
#if PHP_VERSION_ID < 70200
#define UV_PARAM_PROLOGUE Z_PARAM_PROLOGUE(0)
#else
#define UV_PARAM_PROLOGUE Z_PARAM_PROLOGUE(0, 0)
#endif
#if PHP_VERSION_ID < 70400
#define _error_code error_code
#endif
#if PHP_VERSION_ID >= 80000
#define zend_internal_type_error(strict_types, ...) zend_type_error(__VA_ARGS__)
#if defined(ZTS)
/* Read a resource from a thread's resource storage */
static int tsrm_error_level;
static FILE *tsrm_error_file;
/* Debug support */
int tsrm_error(int level, const char *format, ...);
int tsrm_error(int level, const char *format, ...)
{ /*{{{*/
if (level <= tsrm_error_level)
{
va_list args;
int size;
fprintf(tsrm_error_file, "TSRM: ");
va_start(args, format);
size = vfprintf(tsrm_error_file, format, args);
va_end(args);
fprintf(tsrm_error_file, "\n");
fflush(tsrm_error_file);
return size;
}
else
{
return 0;
}
} /*}}}*/
#if PHP_UV_DEBUG
#define TSRM_ERROR(args) tsrm_error args
#define TSRM_SAFE_RETURN_RSRC(array, offset,range) \
{ \
int unshuffled_offset = TSRM_UNSHUFFLE_RSRC_ID(offset); \
\
if (offset == 0) \
{ \
return &array; \
} \
else if ((unshuffled_offset) >= 0 && (unshuffled_offset) < (range)) \
{ \
TSRM_ERROR((TSRM_ERROR_LEVEL_INFO, "Successfully fetched resource id %d for thread id %ld - 0x%0.8X", \
unshuffled_offset, (long)thread_resources->thread_id, array[unshuffled_offset])); \
return array[unshuffled_offset]; \
} \
else \
{ \
TSRM_ERROR((TSRM_ERROR_LEVEL_ERROR, "Resource id %d is out of range (%d..%d)", \
unshuffled_offset, TSRM_SHUFFLE_RSRC_ID(0), TSRM_SHUFFLE_RSRC_ID(thread_resources->count - 1))); \
return NULL; \
} \
}
#else
#define TSRM_ERROR(args)
#define TSRM_SAFE_RETURN_RSRC(array, offset, range) \
if (offset == 0) \
{ \
return &array; \
} \
else \
{ \
return array[TSRM_UNSHUFFLE_RSRC_ID(offset)]; \
}
#endif
#ifdef TSRM_WIN32
static DWORD tls_key;
#define tsrm_tls_set(what) TlsSetValue(tls_key, (void *)(what))
#define tsrm_tls_get() TlsGetValue(tls_key)
#else
static pthread_key_t tls_key;
#define tsrm_tls_set(what) pthread_setspecific(tls_key, (void *)(what))
#define tsrm_tls_get() pthread_getspecific(tls_key)
#endif
typedef struct _tsrm_tls_entry tsrm_tls_entry;
/* thread-safe memory manager mutex */
static size_t tsrm_reserved_size = 0;
static ts_rsrc_id id_count;
struct _tsrm_tls_entry
{
void **storage;
int count;
THREAD_T thread_id;
tsrm_tls_entry *next;
};
typedef struct
{
size_t size;
ts_allocate_ctor ctor;
ts_allocate_dtor dtor;
size_t fast_offset;
int done;
} tsrm_resource_type;
/* The resource sizes table */
static tsrm_resource_type *resource_types_table = NULL;
/* New thread handlers */
static tsrm_thread_begin_func_t tsrm_new_thread_begin_handler = NULL;
static tsrm_thread_end_func_t tsrm_new_thread_end_handler = NULL;
static tsrm_shutdown_func_t tsrm_shutdown_handler = NULL;
/* these 3 APIs should only be used by people that fully understand the threading model
* used by PHP/Zend and the selected SAPI. */
void *tsrm_new_interpreter_context(void);
void *tsrm_set_interpreter_context(void *new_ctx);
void tsrm_free_interpreter_context(void *context);
static void allocate_new_resource(tsrm_tls_entry **thread_resources_ptr, THREAD_T thread_id, MUTEX_T tsmm_mutex);
static void allocate_new_resource(tsrm_tls_entry **thread_resources_ptr, THREAD_T thread_id, MUTEX_T tsmm_mutex)
{ /*{{{*/
int i;
TSRM_ERROR((TSRM_ERROR_LEVEL_CORE, "Creating data structures for thread %x", thread_id));
(*thread_resources_ptr) = (tsrm_tls_entry *)malloc(TSRM_ALIGNED_SIZE(sizeof(tsrm_tls_entry)) + tsrm_reserved_size);
(*thread_resources_ptr)->storage = NULL;
if (id_count > 0) {
(*thread_resources_ptr)->storage = (void **)malloc(sizeof(void *) * id_count);
}
(*thread_resources_ptr)->count = id_count;
(*thread_resources_ptr)->thread_id = thread_id;
(*thread_resources_ptr)->next = NULL;
/* Set thread local storage to this new thread resources structure */
tsrm_tls_set(*thread_resources_ptr);
TSRMLS_CACHE = *thread_resources_ptr;
if (tsrm_new_thread_begin_handler) {
tsrm_new_thread_begin_handler(thread_id);
}
for (i = 0; i < id_count; i++) {
if (resource_types_table[i].done) {
(*thread_resources_ptr)->storage[i] = NULL;
} else {
if (resource_types_table[i].fast_offset) {
(*thread_resources_ptr)->storage[i] = (void *)(((char *)(*thread_resources_ptr)) + resource_types_table[i].fast_offset);
} else {
(*thread_resources_ptr)->storage[i] = (void *)malloc(resource_types_table[i].size);
}
if (resource_types_table[i].ctor) {
resource_types_table[i].ctor((*thread_resources_ptr)->storage[i]);
}
}
}
if (tsrm_new_thread_end_handler) {
tsrm_new_thread_end_handler(thread_id);
}
tsrm_mutex_unlock(tsmm_mutex);
} /*}}}*/
/* frees an interpreter context. You are responsible for making sure that
* it is not linked into the TSRM hash, and not marked as the current interpreter */
void tsrm_free_interpreter_context(void *context)
{ /*{{{*/
tsrm_tls_entry *next, *thread_resources = (tsrm_tls_entry *)context;
int i;
while (thread_resources)
{
next = thread_resources->next;
for (i = 0; i < thread_resources->count; i++)
{
if (resource_types_table[i].dtor)
{
resource_types_table[i].dtor(thread_resources->storage[i]);
}
}
for (i = 0; i < thread_resources->count; i++)
{
if (!resource_types_table[i].fast_offset)
{
free(thread_resources->storage[i]);
}
}
free(thread_resources->storage);
free(thread_resources);
thread_resources = next;
}
} /*}}}*/
void *tsrm_set_interpreter_context(void *new_ctx)
{ /*{{{*/
tsrm_tls_entry *current;
current = tsrm_tls_get();
/* TODO: unlink current from the global linked list, and replace it
* it with the new context, protected by mutex where/if appropriate */
/* Set thread local storage to this new thread resources structure */
tsrm_tls_set(new_ctx);
/* return old context, so caller can restore it when they're done */
return current;
} /*}}}*/
/* allocates a new interpreter context */
void *tsrm_new_interpreter_context(void)
{ /*{{{*/
tsrm_tls_entry *new_ctx, *current;
THREAD_T thread_id;
MUTEX_T tsmm_mutex;
tsmm_mutex = tsrm_mutex_alloc();
thread_id = tsrm_thread_id();
tsrm_mutex_lock(tsmm_mutex);
current = tsrm_tls_get();
allocate_new_resource(&new_ctx, thread_id, tsmm_mutex);
tsrm_mutex_free(tsmm_mutex);
/* switch back to the context that was in use prior to our creation
* of the new one */
return tsrm_set_interpreter_context(current);
} /*}}}*/
#endif
#endif
#define UV_PARAM_OBJ_EX(dest, type, check_null, ce, ...) \
{ \
zval *zv; \
UV_PARAM_PROLOGUE \
if (UNEXPECTED(!uv_parse_arg_object(_arg, &zv, check_null, ce, ##__VA_ARGS__, NULL))) { \
if (!(_flags & ZEND_PARSE_PARAMS_QUIET)) { \
zend_string *names = php_uv_concat_ce_names(ce, ##__VA_ARGS__, NULL); \
uv_zend_wrong_parameter_class_error(_flags & ZEND_PARSE_PARAMS_THROW, _i, ZSTR_VAL(names), _arg); \
zend_string_release(names); \
} \
_error_code = ZPP_ERROR_FAILURE; \
break; \
} \
if (GC_FLAGS(Z_OBJ_P(zv)) & IS_OBJ_DESTRUCTOR_CALLED) { \
if (!(_flags & ZEND_PARSE_PARAMS_QUIET)) { \
php_error_docref(NULL, E_WARNING, "passed %s handle is already closed", ZSTR_VAL(Z_OBJCE_P(_arg)->name)); \
} \
_error_code = ZPP_ERROR_FAILURE; \
break; \
} \
dest = zv == NULL ? NULL : (type *) Z_OBJ_P(zv); \
}
#define UV_PARAM_OBJ(dest, type, ...) UV_PARAM_OBJ_EX(dest, type, 0, ##__VA_ARGS__, NULL)
#define UV_PARAM_OBJ_NULL(dest, type, ...) UV_PARAM_OBJ_EX(dest, type, 1, ##__VA_ARGS__, NULL)
static ZEND_COLD zend_string *php_uv_concat_ce_names(zend_class_entry *ce, zend_class_entry *next, ...) {
va_list va;
smart_str buf = {0};
va_start(va, next);
if (!next) {
return zend_string_copy(ce->name);
}
goto start;
do {
if (next) {
smart_str_appends(&buf, ", ");
} else {
smart_str_appends(&buf, " or ");
}
start:
smart_str_append(&buf, ce->name);
ce = next;
next = (zend_class_entry *) va_arg(va, zend_class_entry *);
} while (next);
va_end(va);
smart_str_0(&buf);
return buf.s;
}
/* gcc complains: sorry, unimplemented: function ‘uv_parse_arg_object’ can never be inlined because it uses variable argument lists */
#ifdef __clang__
static zend_always_inline int uv_parse_arg_object(zval *arg, zval **dest, int check_null, zend_class_entry *ce, ...) {
#else
static int uv_parse_arg_object(zval *arg, zval **dest, int check_null, zend_class_entry *ce, ...) {
#endif
if (EXPECTED(Z_TYPE_P(arg) == IS_OBJECT)) {
va_list va;
zend_class_entry *argce = Z_OBJCE_P(arg);
va_start(va, ce);
do {
if (instanceof_function(argce, ce)) {
*dest = arg;
return 1;
}
ce = (zend_class_entry *) va_arg(va, zend_class_entry *);
} while (ce);
} else if (check_null && EXPECTED(Z_TYPE_P(arg) == IS_NULL)) {
*dest = NULL;
return 1;
}
return 0;
}
#define PHP_UV_DEINIT_UV(uv) \
clean_uv_handle(uv); \
OBJ_RELEASE(&uv->std);
#define PHP_UV_INIT_GENERIC(dest, type, ce) \
do { \
zval zv; \
object_init_ex(&zv, ce); \
dest = (type *) Z_OBJ(zv); \
} while (0)
#define PHP_UV_INIT_UV(uv, ce) PHP_UV_INIT_GENERIC(uv, php_uv_t, ce)
#define PHP_UV_INIT_UV_EX(_uv, ce, cb, ...) \
do { \
int r; \
PHP_UV_INIT_UV(_uv, ce); \
r = cb(&loop->loop, (void *) &_uv->uv.handle, ##__VA_ARGS__); \
if (r) { \
PHP_UV_DEINIT_UV(_uv); \
php_error_docref(NULL, E_WARNING, #cb " failed"); \
RETURN_FALSE; \
} \
} while (0)
#define PHP_UV_INIT_CONNECT(req, uv) \
req = (uv_connect_t *) emalloc(sizeof(uv_connect_t)); \
req->data = uv;
#define PHP_UV_INIT_WRITE_REQ(w, uv, str, strlen, cb) \
w = (write_req_t *) emalloc(sizeof(write_req_t)); \
w->req.data = uv; \
w->buf = uv_buf_init(estrndup(str, strlen), strlen); \
w->cb = cb; \
#define PHP_UV_INIT_SEND_REQ(w, uv, str, strlen) \
w = (send_req_t *) emalloc(sizeof(send_req_t)); \
w->req.data = uv; \
w->buf = uv_buf_init(estrndup(str, strlen), strlen); \
#define PHP_UV_FETCH_UV_DEFAULT_LOOP(loop) \
if (loop == NULL) { \
loop = php_uv_default_loop(); \
} \
#define PHP_UV_INIT_LOCK(lock, lock_type) \
PHP_UV_INIT_GENERIC(lock, php_uv_lock_t, uv_lock_ce); \
lock->type = lock_type;
#define PHP_UV_CHECK_VALID_FD(fd, zstream) \
if (fd < 0) { \
php_error_docref(NULL, E_WARNING, "invalid variable passed. can't convert to fd."); \
PHP_UV_DEINIT_UV(uv); \
RETURN_FALSE; \
} \
if (Z_ISUNDEF(uv->fs_fd)) { \
ZVAL_COPY(&uv->fs_fd, zstream); \
}
#define PHP_UV_ZVAL_TO_VALID_POLL_FD(fd, zstream) \
{ \
fd = php_uv_zval_to_valid_poll_fd(zstream); \
PHP_UV_CHECK_VALID_FD(fd, zstream) \
}
#define PHP_UV_ZVAL_TO_FD(fd, zstream) \
{ \
fd = php_uv_zval_to_fd(zstream); \
PHP_UV_CHECK_VALID_FD(fd, zstream) \
}
#define PHP_UV_FS_ASYNC(loop, func, ...) \
error = uv_fs_##func(&loop->loop, (uv_fs_t*)&uv->uv.fs, __VA_ARGS__, php_uv_fs_cb); \
if (error) { \
PHP_UV_DEINIT_UV(uv); \
php_error_docref(NULL, E_WARNING, "uv_" #func " failed"); \
return; \
}
#define PHP_UV_INIT_ZVALS(uv) \
{ \
int ix = 0;\
for (ix = 0; ix < PHP_UV_CB_MAX; ix++) {\
uv->callback[ix] = NULL;\
} \
ZVAL_UNDEF(&uv->fs_fd); \
ZVAL_UNDEF(&uv->fs_fd_alt); \
}
#if PHP_VERSION_ID < 70300
#define PHP_UV_SKIP_DTOR(uv) do { GC_FLAGS(&uv->std) |= IS_OBJ_DESTRUCTOR_CALLED; } while (0)
#else
#define PHP_UV_SKIP_DTOR(uv) do { GC_ADD_FLAGS(&uv->std, IS_OBJ_DESTRUCTOR_CALLED); } while (0)
#endif
#define PHP_UV_IS_DTORED(uv) (GC_FLAGS(&uv->std) & IS_OBJ_DESTRUCTOR_CALLED)
#define PHP_UV_SOCKADDR_IPV4_INIT(sockaddr) PHP_UV_INIT_GENERIC(sockaddr, php_uv_sockaddr_t, uv_sockaddr_ipv4_ce);
#define PHP_UV_SOCKADDR_IPV6_INIT(sockaddr) PHP_UV_INIT_GENERIC(sockaddr, php_uv_sockaddr_t, uv_sockaddr_ipv6_ce);
#define PHP_UV_SOCKADDR_IS_IPV4(sockaddr) (sockaddr->std.ce == uv_sockaddr_ipv4_ce)
#define PHP_UV_SOCKADDR_IS_IPV6(sockaddr) (sockaddr->std.ce == uv_sockaddr_ipv6_ce)
#define PHP_UV_SOCKADDR_IPV4(sockaddr) sockaddr->addr.ipv4
#define PHP_UV_SOCKADDR_IPV4_P(sockaddr) &sockaddr->addr.ipv4
#define PHP_UV_SOCKADDR_IPV6(sockaddr) sockaddr->addr.ipv6
#define PHP_UV_SOCKADDR_IPV6_P(sockaddr) &sockaddr->addr.ipv6
#define PHP_UV_LOCK_RWLOCK_P(_lock) &_lock->lock.rwlock
#define PHP_UV_LOCK_MUTEX_P(_lock) &_lock->lock.mutex
#define PHP_UV_LOCK_SEM_P(_lock) &_lock->lock.semaphore
#define PHP_UV_FD_TO_ZVAL(zv, fd) { php_stream *_stream = php_stream_fopen_from_fd(fd, "w+", NULL); zval *_z = (zv); php_stream_to_zval(_stream, _z); }
#if PHP_UV_DEBUG>=1
#define PHP_UV_DEBUG_PRINT(format, ...) fprintf(stderr, format, ## __VA_ARGS__)
#else
#define PHP_UV_DEBUG_PRINT(format, ...)
#endif
#if PHP_UV_DEBUG>=1
#define PHP_UV_DEBUG_OBJ_ADD_REFCOUNT(handler, uv) \
{ \
PHP_UV_DEBUG_PRINT("# %s add(%p - %s): %u->%u\n", #handler, uv, ZSTR_VAL(uv->std.ce->name), GC_REFCOUNT(&(uv)->std) - 1, GC_REFCOUNT(&(uv)->std)); \
}
#define PHP_UV_DEBUG_OBJ_DEL_REFCOUNT(handler, uv) \
{ \
PHP_UV_DEBUG_PRINT("# %s del(%p - %s): %u->%u\n", #handler, uv, ZSTR_VAL(uv->std.ce->name), GC_REFCOUNT(&(uv)->std), GC_REFCOUNT(&(uv)->std) - 1); \
}
#else
#define PHP_UV_DEBUG_OBJ_ADD_REFCOUNT(hander, uv)
#define PHP_UV_DEBUG_OBJ_DEL_REFCOUNT(hander, uv)
#endif
#if defined(ZTS)
#define UV_FETCH_ALL(ls, id, type) ((type) (*((void ***) ls))[TSRM_UNSHUFFLE_RSRC_ID(id)])
#define UV_FETCH_CTX(ls, id, type, element) (((type) (*((void ***) ls))[TSRM_UNSHUFFLE_RSRC_ID(id)])->element)
#define UV_CG(ls, v) UV_FETCH_CTX(ls, compiler_globals_id, zend_compiler_globals*, v)
#define UV_CG_ALL(ls) UV_FETCH_ALL(ls, compiler_globals_id, zend_compiler_globals*)
#define UV_EG(ls, v) UV_FETCH_CTX(ls, executor_globals_id, zend_executor_globals*, v)
#define UV_SG(ls, v) UV_FETCH_CTX(ls, sapi_globals_id, sapi_globals_struct*, v)
#define UV_EG_ALL(ls) UV_FETCH_ALL(ls, executor_globals_id, zend_executor_globals*)
#endif
#if PHP_VERSION_ID < 80000 && defined(PHP_WIN32)
#define __attribute__(X)
#endif
#if !defined(PHP_WIN32) && !(defined(HAVE_SOCKETS) && !defined(COMPILE_DL_SOCKETS))
# if PHP_VERSION_ID >= 80000
__attribute__((weak)) zend_class_entry *socket_ce = NULL;
# endif
#endif
#if PHP_VERSION_ID < 80000 && (!defined(PHP_WIN32) || (defined(HAVE_SOCKETS) && !defined(COMPILE_DL_SOCKETS)))
int (*php_sockets_le_socket_ptr)(void) = NULL;
int php_sockets_le_socket(void) __attribute__((weak));
#endif
/* objects */
extern void php_uv_init(zend_class_entry *uv_ce);
static zend_object_handlers uv_default_handlers;
static zend_class_entry *uv_ce;
static zend_object_handlers uv_handlers;
static zend_class_entry *uv_stream_ce;
static zend_class_entry *uv_tcp_ce;
static zend_class_entry *uv_udp_ce;
static zend_class_entry *uv_pipe_ce;
static zend_class_entry *uv_idle_ce;
static zend_class_entry *uv_timer_ce;
static zend_class_entry *uv_async_ce;
static zend_class_entry *uv_addrinfo_ce;
static zend_class_entry *uv_process_ce;
static zend_class_entry *uv_prepare_ce;
static zend_class_entry *uv_check_ce;
static zend_class_entry *uv_work_ce;
static zend_class_entry *uv_fs_ce;
static zend_class_entry *uv_fs_event_ce;
static zend_class_entry *uv_tty_ce;
static zend_class_entry *uv_fs_poll_ce;
static zend_class_entry *uv_poll_ce;
static zend_class_entry *uv_signal_ce;
static zend_class_entry *uv_loop_ce;
static zend_object_handlers uv_loop_handlers;
static zend_class_entry *uv_sockaddr_ce;
static zend_class_entry *uv_sockaddr_ipv4_ce;
static zend_class_entry *uv_sockaddr_ipv6_ce;
static zend_class_entry *uv_lock_ce;
static zend_object_handlers uv_lock_handlers;
static zend_class_entry *uv_stdio_ce;
static zend_object_handlers uv_stdio_handlers;
typedef struct {
uv_write_t req;
uv_buf_t buf;
php_uv_cb_t *cb;
} write_req_t;
typedef struct {
uv_udp_send_t req;
uv_buf_t buf;
} send_req_t;
enum php_uv_socket_type {
PHP_UV_TCP_IPV4 = 1,
PHP_UV_TCP_IPV6 = 2,
PHP_UV_TCP = 3,
PHP_UV_UDP_IPV4 = 16,
PHP_UV_UDP_IPV6 = 32,
PHP_UV_UDP = 48,
};
/* declarations */
static void php_uv_fs_cb(uv_fs_t* req);
/**
* execute callback
*
* @param zval* retval_ptr non-initialized pointer. this will be allocate from zend_call_function
* @param php_uv_cb_t* callback callable object
* @param zval* params parameters.
* @param int param_count
* @return int (maybe..)
*/
static int php_uv_do_callback(zval *retval_ptr, php_uv_cb_t *callback, zval *params, int param_count TSRMLS_DC);
void static destruct_uv(zend_object *obj);
void static clean_uv_handle(php_uv_t *uv);
static void php_uv_tcp_connect_cb(uv_connect_t *conn_req, int status);
static void php_uv_write_cb(uv_write_t* req, int status);
static void php_uv_listen_cb(uv_stream_t* server, int status);
static void php_uv_shutdown_cb(uv_shutdown_t* req, int status);
static void php_uv_read_cb(uv_stream_t* handle, ssize_t nread,const uv_buf_t* buf);
/* unused: static void php_uv_read2_cb(uv_pipe_t* handle, ssize_t nread, uv_buf_t buf, uv_handle_type pending); */
static void php_uv_read_alloc(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf);
static void php_uv_close(php_uv_t *uv);
static void php_uv_timer_cb(uv_timer_t *handle);
static void php_uv_idle_cb(uv_timer_t *handle);
static void php_uv_signal_cb(uv_signal_t *handle, int sig_num);
static php_uv_loop_t *php_uv_default_loop()
{
if (UV_G(default_loop) == NULL) {
zval zv;
object_init_ex(&zv, uv_loop_ce);
UV_G(default_loop) = (php_uv_loop_t *) Z_OBJ(zv);
}
return UV_G(default_loop);
}
static php_socket_t php_uv_zval_to_valid_poll_fd(zval *ptr)
{
php_socket_t fd = -1;
php_stream *stream;
/* Validate Checks */
#if !defined(PHP_WIN32) || (defined(HAVE_SOCKETS) && !defined(COMPILE_DL_SOCKETS)) || PHP_VERSION_ID >= 80000
php_socket *socket;
#endif
/* TODO: is this correct on windows platform? */
if (Z_TYPE_P(ptr) == IS_RESOURCE) {
if ((stream = (php_stream *) zend_fetch_resource_ex(ptr, NULL, php_file_le_stream()))) {
/* make sure only valid resource streams are passed - plainfiles and most php streams are invalid */
if (stream->wrapper && !strcmp((char *)stream->wrapper->wops->label, "PHP") && (!stream->orig_path || (strncmp(stream->orig_path, "php://std", sizeof("php://std") - 1) && strncmp(stream->orig_path, "php://fd", sizeof("php://fd") - 1)))) {
php_error_docref(NULL, E_WARNING, "invalid resource passed, this resource is not supported");
return -1;
}
/* Some streams (specifically STDIO and encrypted streams) can be cast to FDs */
if (php_stream_cast(stream, PHP_STREAM_AS_FD_FOR_SELECT | PHP_STREAM_CAST_INTERNAL, (void*)&fd, 1) == SUCCESS && fd >= 0) {
if (stream->wrapper && !strcmp((char *)stream->wrapper->wops->label, "plainfile")) {
#ifndef PHP_WIN32
struct stat stat;
fstat(fd, &stat);
if (!S_ISFIFO(stat.st_mode))
#endif
{
php_error_docref(NULL, E_WARNING, "invalid resource passed, this plain files are not supported");
return -1;
}
}
return fd;
}
fd = -1;
#if PHP_VERSION_ID < 80000 && (!defined(PHP_WIN32) || (defined(HAVE_SOCKETS) && !defined(COMPILE_DL_SOCKETS)))
} else if (php_sockets_le_socket_ptr && (socket = (php_socket *) zend_fetch_resource_ex(ptr, NULL, php_sockets_le_socket_ptr()))) {
fd = socket->bsd_socket;
#endif
} else {
php_error_docref(NULL, E_WARNING, "unhandled resource type detected.");
fd = -1;
}
#if PHP_VERSION_ID >= 80000 && (!defined(PHP_WIN32) || (defined(HAVE_SOCKETS) && !defined(COMPILE_DL_SOCKETS)))
} else if (socket_ce && Z_TYPE_P(ptr) == IS_OBJECT && Z_OBJCE_P(ptr) == socket_ce && (socket = (php_socket *) ((char *)(Z_OBJ_P(ptr)) - XtOffsetOf(php_socket, std)))) {
fd = socket->bsd_socket;
#endif
}
return fd;
}
static php_socket_t php_uv_zval_to_fd(zval *ptr)
{
php_socket_t fd = -1;
php_stream *stream;
#if !defined(PHP_WIN32) || (defined(HAVE_SOCKETS) && !defined(COMPILE_DL_SOCKETS)) || PHP_VERSION_ID >= 80000
php_socket *socket;
#endif
/* TODO: is this correct on windows platform? */
if (Z_TYPE_P(ptr) == IS_RESOURCE) {
if ((stream = (php_stream *) zend_fetch_resource_ex(ptr, NULL, php_file_le_stream()))) {
if (php_stream_cast(stream, PHP_STREAM_AS_FD | PHP_STREAM_CAST_INTERNAL, (void *) &fd, 1) != SUCCESS || fd < 0) {
fd = -1;
}
#if PHP_VERSION_ID < 80000 && (!defined(PHP_WIN32) || (defined(HAVE_SOCKETS) && !defined(COMPILE_DL_SOCKETS)))
} else if (php_sockets_le_socket_ptr && (socket = (php_socket *) zend_fetch_resource_ex(ptr, NULL, php_sockets_le_socket_ptr()))) {
fd = socket->bsd_socket;
#endif
} else {
php_error_docref(NULL, E_WARNING, "unhandled resource type detected.");
fd = -1;
}
} else if (Z_TYPE_P(ptr) == IS_LONG) {
fd = Z_LVAL_P(ptr);
if (fd < 0) {
fd = -1;
}
{
/* make sure that a valid resource handle was passed - issue #36 */
int err = uv_guess_handle((uv_file) fd);
if (err == UV_UNKNOWN_HANDLE) {
php_error_docref(NULL, E_WARNING, "invalid resource type detected");
fd = -1;
}
}
#if PHP_VERSION_ID >= 80000 && (!defined(PHP_WIN32) || (defined(HAVE_SOCKETS) && !defined(COMPILE_DL_SOCKETS)))
} else if (socket_ce && Z_TYPE_P(ptr) == IS_OBJECT && Z_OBJCE_P(ptr) == socket_ce && (socket = (php_socket *) ((char *)(Z_OBJ_P(ptr)) - XtOffsetOf(php_socket, std)))) {
fd = socket->bsd_socket;
#endif
}
return fd;
}
static const char* php_uv_strerror(long error_code)
{
/* Note: uv_strerror doesn't use assert. we don't need check value here */
return uv_strerror(error_code);
}
static php_uv_cb_t* php_uv_cb_init_dynamic(php_uv_t *uv, zend_fcall_info *fci, zend_fcall_info_cache *fcc) {
php_uv_cb_t *cb = emalloc(sizeof(php_uv_cb_t));
memcpy(&cb->fci, fci, sizeof(zend_fcall_info));
memcpy(&cb->fcc, fcc, sizeof(zend_fcall_info_cache));
if (ZEND_FCI_INITIALIZED(*fci)) {
Z_TRY_ADDREF(cb->fci.function_name);
if (fci->object) {
GC_ADDREF(cb->fci.object);
}
}
return cb;
}
static void php_uv_cb_init(php_uv_cb_t **result, php_uv_t *uv, zend_fcall_info *fci, zend_fcall_info_cache *fcc, enum php_uv_callback_type type)
{
php_uv_cb_t *cb;
if (uv->callback[type] == NULL) {
cb = emalloc(sizeof(php_uv_cb_t));
} else {
cb = uv->callback[type];
if (Z_TYPE(cb->fci.function_name) != IS_UNDEF) {
zval_dtor(&cb->fci.function_name);
}
if (fci->object) {
OBJ_RELEASE(fci->object);
}
}
memcpy(&cb->fci, fci, sizeof(zend_fcall_info));
memcpy(&cb->fcc, fcc, sizeof(zend_fcall_info_cache));
if (ZEND_FCI_INITIALIZED(*fci)) {
Z_TRY_ADDREF(cb->fci.function_name);
if (fci->object) {
GC_ADDREF(cb->fci.object);
}
}
uv->callback[type] = cb;
}
static void php_uv_lock_init(enum php_uv_lock_type lock_type, INTERNAL_FUNCTION_PARAMETERS)
{
php_uv_lock_t *lock = NULL;
int error = 0;
switch (lock_type) {
case IS_UV_RWLOCK:
case IS_UV_RWLOCK_WR:
case IS_UV_RWLOCK_RD:
{
PHP_UV_INIT_LOCK(lock, IS_UV_RWLOCK);
error = uv_rwlock_init(PHP_UV_LOCK_RWLOCK_P(lock));
}
break;
case IS_UV_MUTEX:
{
PHP_UV_INIT_LOCK(lock, IS_UV_MUTEX);
error = uv_mutex_init(PHP_UV_LOCK_MUTEX_P(lock));
}
break;
case IS_UV_SEMAPHORE:
{
zend_long val = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(),
"l", &val) == FAILURE) {
return;
}
PHP_UV_INIT_LOCK(lock, IS_UV_SEMAPHORE);
error = uv_sem_init(PHP_UV_LOCK_SEM_P(lock), (int) val);
}
break;
default:
php_error_docref(NULL, E_ERROR, "unexpected type");
break;
}
if (error == 0) {
RETURN_OBJ(&lock->std);
} else {
OBJ_RELEASE(&lock->std);
RETURN_FALSE;
}
}
static void php_uv_lock_lock(enum php_uv_lock_type lock_type, INTERNAL_FUNCTION_PARAMETERS)
{
php_uv_lock_t *lock;
ZEND_PARSE_PARAMETERS_START(1, 1)
UV_PARAM_OBJ(lock, php_uv_lock_t, uv_lock_ce)
ZEND_PARSE_PARAMETERS_END();
switch (lock_type) {
case IS_UV_RWLOCK:
case IS_UV_RWLOCK_RD:
{
if (lock->locked == 0x01) {
zend_error(E_WARNING, "Cannot acquire a read lock while holding a write lock");
RETURN_FALSE;
}
uv_rwlock_rdlock(PHP_UV_LOCK_RWLOCK_P(lock));
if (!lock->locked++) {
lock->locked = 0x02;
}
}
break;
case IS_UV_RWLOCK_WR:
{
if (lock->locked) {
zend_error(E_WARNING, "Cannot acquire a write lock when already holding a lock");
RETURN_FALSE;
}
uv_rwlock_wrlock(PHP_UV_LOCK_RWLOCK_P(lock));
lock->locked = 0x01;
}
break;
case IS_UV_MUTEX:
{
uv_mutex_lock(PHP_UV_LOCK_MUTEX_P(lock));
lock->locked = 0x01;
}
break;
case IS_UV_SEMAPHORE:
{
uv_sem_post(PHP_UV_LOCK_SEM_P(lock));
}
break;
default:
php_error_docref(NULL, E_ERROR, "unexpected type");
break;
}
}
static void php_uv_lock_unlock(enum php_uv_lock_type lock_type, INTERNAL_FUNCTION_PARAMETERS)
{
php_uv_lock_t *lock;
ZEND_PARSE_PARAMETERS_START(1, 1)
UV_PARAM_OBJ(lock, php_uv_lock_t, uv_lock_ce)
ZEND_PARSE_PARAMETERS_END();
switch (lock_type) {
case IS_UV_RWLOCK:
case IS_UV_RWLOCK_RD:
{
if (lock->locked > 0x01) {
uv_rwlock_rdunlock(PHP_UV_LOCK_RWLOCK_P(lock));
if (--lock->locked == 0x01) {
lock->locked = 0x00;
}
}
}
break;
case IS_UV_RWLOCK_WR:
{
if (lock->locked == 0x01) {
uv_rwlock_wrunlock(PHP_UV_LOCK_RWLOCK_P(lock));
lock->locked = 0x00;
}
}
break;
case IS_UV_MUTEX:
{
if (lock->locked == 0x01) {
uv_mutex_unlock(PHP_UV_LOCK_MUTEX_P(lock));
lock->locked = 0x00;
}
}
break;
case IS_UV_SEMAPHORE:
{
uv_sem_wait(PHP_UV_LOCK_SEM_P(lock));
}
break;
default:
php_error_docref(NULL, E_ERROR, "unexpected type");
break;
}
}
static void php_uv_lock_trylock(enum php_uv_lock_type lock_type, INTERNAL_FUNCTION_PARAMETERS)
{
php_uv_lock_t *lock;
int error = 0;
ZEND_PARSE_PARAMETERS_START(1, 1)
UV_PARAM_OBJ(lock, php_uv_lock_t, uv_lock_ce)
ZEND_PARSE_PARAMETERS_END();
switch(lock_type) {
case IS_UV_RWLOCK:
case IS_UV_RWLOCK_RD:
{
if (lock->locked == 0x01) {
zend_error(E_WARNING, "Cannot acquire a read lock while holding a write lock");
RETURN_FALSE;
}
error = uv_rwlock_tryrdlock(PHP_UV_LOCK_RWLOCK_P(lock));
if (error == 0) {
if (!lock->locked++) {
lock->locked = 0x02;
}
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
break;
case IS_UV_RWLOCK_WR:
{
if (lock->locked) {
zend_error(E_WARNING, "Cannot acquire a write lock when already holding a lock");
RETURN_FALSE;
}
error = uv_rwlock_trywrlock(PHP_UV_LOCK_RWLOCK_P(lock));
if (error == 0) {
lock->locked = 0x01;
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
break;
case IS_UV_MUTEX:
{
error = uv_mutex_trylock(PHP_UV_LOCK_MUTEX_P(lock));
if (error == 0) {
lock->locked = 0x01;
RETURN_TRUE;
} else {
RETURN_FALSE;
}