From a4dd0ad63c00f4dee3b86dfd3075d1d61b2b3180 Mon Sep 17 00:00:00 2001 From: sanine Date: Sat, 27 Aug 2022 23:52:56 -0500 Subject: add plibsys --- 3rdparty/plibsys/src/psemaphore-win.c | 204 ++++++++++++++++++++++++++++++++++ 1 file changed, 204 insertions(+) create mode 100644 3rdparty/plibsys/src/psemaphore-win.c (limited to '3rdparty/plibsys/src/psemaphore-win.c') diff --git a/3rdparty/plibsys/src/psemaphore-win.c b/3rdparty/plibsys/src/psemaphore-win.c new file mode 100644 index 0000000..228c054 --- /dev/null +++ b/3rdparty/plibsys/src/psemaphore-win.c @@ -0,0 +1,204 @@ +/* + * The MIT License + * + * Copyright (C) 2010-2018 Alexander Saprykin + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * 'Software'), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "perror.h" +#include "pmem.h" +#include "psemaphore.h" +#include "perror-private.h" +#include "pipc-private.h" + +#include +#include + +#define P_SEM_SUFFIX "_p_sem_object" +#define P_SEM_INVALID_HDL NULL + +typedef HANDLE psem_hdl; + +struct PSemaphore_ { + pchar *platform_key; + psem_hdl sem_hdl; + pint init_val; +}; + +static pboolean pp_semaphore_create_handle (PSemaphore *sem, PError **error); +static void pp_semaphore_clean_handle (PSemaphore *sem); + +static pboolean +pp_semaphore_create_handle (PSemaphore *sem, PError **error) +{ + if (P_UNLIKELY (sem == NULL || sem->platform_key == NULL)) { + p_error_set_error_p (error, + (pint) P_ERROR_IPC_INVALID_ARGUMENT, + 0, + "Invalid input argument"); + return FALSE; + } + + /* Multibyte character set must be enabled */ + if (P_UNLIKELY ((sem->sem_hdl = CreateSemaphoreA (NULL, + sem->init_val, + MAXLONG, + sem->platform_key)) == P_SEM_INVALID_HDL)) { + p_error_set_error_p (error, + (pint) p_error_get_last_ipc (), + p_error_get_last_system (), + "Failed to call CreateSemaphore() to create semaphore"); + return FALSE; + } + + return TRUE; +} + +static void +pp_semaphore_clean_handle (PSemaphore *sem) +{ + if (P_UNLIKELY (sem->sem_hdl != P_SEM_INVALID_HDL && CloseHandle (sem->sem_hdl) == 0)) + P_ERROR ("PSemaphore::pp_semaphore_clean_handle: CloseHandle() failed"); + + sem->sem_hdl = P_SEM_INVALID_HDL; +} + +P_LIB_API PSemaphore * +p_semaphore_new (const pchar *name, + pint init_val, + PSemaphoreAccessMode mode, + PError **error) +{ + PSemaphore *ret; + pchar *new_name; + + P_UNUSED (mode); + + if (P_UNLIKELY (name == NULL || init_val < 0)) { + p_error_set_error_p (error, + (pint) P_ERROR_IPC_INVALID_ARGUMENT, + 0, + "Invalid input argument"); + return NULL; + } + + if (P_UNLIKELY ((ret = p_malloc0 (sizeof (PSemaphore))) == NULL)) { + p_error_set_error_p (error, + (pint) P_ERROR_IPC_NO_RESOURCES, + 0, + "Failed to allocate memory for semaphore"); + return NULL; + } + + if (P_UNLIKELY ((new_name = p_malloc0 (strlen (name) + strlen (P_SEM_SUFFIX) + 1)) == NULL)) { + p_error_set_error_p (error, + (pint) P_ERROR_IPC_NO_RESOURCES, + 0, + "Failed to allocate memory for semaphore"); + p_free (ret); + return NULL; + } + + strcpy (new_name, name); + strcpy (new_name, P_SEM_SUFFIX); + + ret->platform_key = p_ipc_get_platform_key (new_name, FALSE); + ret->init_val = init_val; + + p_free (new_name); + + if (P_UNLIKELY (pp_semaphore_create_handle (ret, error) == FALSE)) { + p_semaphore_free (ret); + return NULL; + } + + return ret; +} + +P_LIB_API void +p_semaphore_take_ownership (PSemaphore *sem) +{ + P_UNUSED (sem); +} + +P_LIB_API pboolean +p_semaphore_acquire (PSemaphore *sem, + PError **error) +{ + pboolean ret; + + if (P_UNLIKELY (sem == NULL)) { + p_error_set_error_p (error, + (pint) P_ERROR_IPC_INVALID_ARGUMENT, + 0, + "Invalid input argument"); + return FALSE; + } + + ret = (WaitForSingleObject (sem->sem_hdl, INFINITE) == WAIT_OBJECT_0) ? TRUE : FALSE; + + if (P_UNLIKELY (ret == FALSE)) + p_error_set_error_p (error, + (pint) p_error_get_last_ipc (), + p_error_get_last_system (), + "Failed to call WaitForSingleObject() on semaphore"); + + return ret; +} + +P_LIB_API pboolean +p_semaphore_release (PSemaphore *sem, + PError **error) +{ + pboolean ret; + + if (P_UNLIKELY (sem == NULL)) { + p_error_set_error_p (error, + (pint) P_ERROR_IPC_INVALID_ARGUMENT, + 0, + "Invalid input argument"); + return FALSE; + } + + ret = ReleaseSemaphore (sem->sem_hdl, 1, NULL) ? TRUE : FALSE; + + if (P_UNLIKELY (ret == FALSE)) + p_error_set_error_p (error, + (pint) p_error_get_last_ipc (), + p_error_get_last_system (), + "Failed to call ReleaseSemaphore() on semaphore"); + + return ret; +} + +P_LIB_API void +p_semaphore_free (PSemaphore *sem) +{ + if (P_UNLIKELY (sem == NULL)) + return; + + pp_semaphore_clean_handle (sem); + + if (P_LIKELY (sem->platform_key != NULL)) + p_free (sem->platform_key); + + p_free (sem); +} -- cgit v1.2.1