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