| /* |
| * Win32 mutexes |
| * |
| * Copyright 1998 Alexandre Julliard |
| */ |
| |
| #include <assert.h> |
| #include <string.h> |
| #include "winerror.h" |
| #include "heap.h" |
| #include "server/request.h" |
| #include "server.h" |
| |
| |
| /*********************************************************************** |
| * CreateMutex32A (KERNEL32.166) |
| */ |
| HANDLE WINAPI CreateMutexA( SECURITY_ATTRIBUTES *sa, BOOL owner, LPCSTR name ) |
| { |
| struct create_mutex_request req; |
| struct create_mutex_reply reply; |
| int len = name ? strlen(name) + 1 : 0; |
| |
| req.owned = owner; |
| req.inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle); |
| CLIENT_SendRequest( REQ_CREATE_MUTEX, -1, 2, &req, sizeof(req), name, len ); |
| SetLastError(0); |
| CLIENT_WaitSimpleReply( &reply, sizeof(reply), NULL ); |
| if (reply.handle == -1) return 0; |
| return reply.handle; |
| } |
| |
| |
| /*********************************************************************** |
| * CreateMutex32W (KERNEL32.167) |
| */ |
| HANDLE WINAPI CreateMutexW( SECURITY_ATTRIBUTES *sa, BOOL owner, |
| LPCWSTR name ) |
| { |
| LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, name ); |
| HANDLE ret = CreateMutexA( sa, owner, nameA ); |
| if (nameA) HeapFree( GetProcessHeap(), 0, nameA ); |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * OpenMutex32A (KERNEL32.541) |
| */ |
| HANDLE WINAPI OpenMutexA( DWORD access, BOOL inherit, LPCSTR name ) |
| { |
| struct open_named_obj_request req; |
| struct open_named_obj_reply reply; |
| int len = name ? strlen(name) + 1 : 0; |
| |
| req.type = OPEN_MUTEX; |
| req.access = access; |
| req.inherit = inherit; |
| CLIENT_SendRequest( REQ_OPEN_NAMED_OBJ, -1, 2, &req, sizeof(req), name, len ); |
| CLIENT_WaitSimpleReply( &reply, sizeof(reply), NULL ); |
| if (reply.handle == -1) return 0; /* must return 0 on failure, not -1 */ |
| return reply.handle; |
| } |
| |
| |
| /*********************************************************************** |
| * OpenMutex32W (KERNEL32.542) |
| */ |
| HANDLE WINAPI OpenMutexW( DWORD access, BOOL inherit, LPCWSTR name ) |
| { |
| LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, name ); |
| HANDLE ret = OpenMutexA( access, inherit, nameA ); |
| if (nameA) HeapFree( GetProcessHeap(), 0, nameA ); |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * ReleaseMutex (KERNEL32.582) |
| */ |
| BOOL WINAPI ReleaseMutex( HANDLE handle ) |
| { |
| struct release_mutex_request req; |
| |
| req.handle = handle; |
| CLIENT_SendRequest( REQ_RELEASE_MUTEX, -1, 1, &req, sizeof(req) ); |
| return !CLIENT_WaitReply( NULL, NULL, 0 ); |
| } |