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#ifndef CYGONCE_POSIX_MUTTYPES_H #define CYGONCE_POSIX_MUTTYPES_H //============================================================================= // // muttypes.h // // POSIX mutex types header // //============================================================================= //####ECOSGPLCOPYRIGHTBEGIN#### // ------------------------------------------- // This file is part of eCos, the Embedded Configurable Operating System. // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. // // eCos is free software; you can redistribute it and/or modify it under // the terms of the GNU General Public License as published by the Free // Software Foundation; either version 2 or (at your option) any later version. // // eCos is distributed in the hope that it will be useful, but WITHOUT ANY // WARRANTY; without even the implied warranty of MERCHANTABILITY or // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License // for more details. // // You should have received a copy of the GNU General Public License along // with eCos; if not, write to the Free Software Foundation, Inc., // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. // // As a special exception, if other files instantiate templates or use macros // or inline functions from this file, or you compile this file and link it // with other works to produce a work based on this file, this file does not // by itself cause the resulting work to be covered by the GNU General Public // License. However the source code for this file must still be made available // in accordance with section (3) of the GNU General Public License. // // This exception does not invalidate any other reasons why a work based on // this file might be covered by the GNU General Public License. // // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. // at http://sources.redhat.com/ecos/ecos-license/ // ------------------------------------------- //####ECOSGPLCOPYRIGHTEND#### //============================================================================= //#####DESCRIPTIONBEGIN#### // // Author(s): nickg // Contributors: nickg,jlarmour // Date: 2000-03-17 // Purpose: POSIX types header // Description: This header contains POSIX type definitions for mutexes // and cond vars. These types are implementation defined. // // Usage: #include <sys/types.h> // // //####DESCRIPTIONEND#### // //============================================================================= #include <pkgconf/posix.h> #include <pkgconf/kernel.h> #include <cyg/infra/cyg_type.h> //----------------------------------------------------------------------------- // Mutex object // This structure must exactly correspond in size and layout to the underlying // eCos C++ class that implements this object. Because we have to support // PTHREAD_MUTEX_INITIALIZER we cannot abstract this object very easily. typedef struct { CYG_WORD32 locked; CYG_ADDRESS owner; CYG_ADDRESS queue; #ifdef CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_DYNAMIC CYG_WORD32 protocol; // this mutex's protocol #endif #ifdef CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_CEILING CYG_WORD32 ceiling; // mutex priority ceiling #endif } pthread_mutex_t; #if defined(CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_DYNAMIC) &&\ defined(CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_CEILING) #define PTHREAD_MUTEX_INITIALIZER { 0, 0, 0, 0, 0 } #elif defined(CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_DYNAMIC) ||\ defined(CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_CEILING) #define PTHREAD_MUTEX_INITIALIZER { 0, 0, 0, 0 } #else #define PTHREAD_MUTEX_INITIALIZER { 0, 0, 0 } #endif //----------------------------------------------------------------------------- // Mutex attributes structure typedef struct { int protocol; #ifdef _POSIX_THREAD_PRIO_PROTECT int prioceiling; #endif } pthread_mutexattr_t; // Values for protocol #define PTHREAD_PRIO_NONE 1 #if defined(_POSIX_THREAD_PRIO_INHERIT) #define PTHREAD_PRIO_INHERIT 2 #endif #if defined(_POSIX_THREAD_PRIO_PROTECT) #define PTHREAD_PRIO_PROTECT 3 #endif //----------------------------------------------------------------------------- // Condition Variable structure. // Like mutexes, this must match the underlying eCos implementation class. typedef struct { CYG_ADDRESS mutex; CYG_ADDRESS queue; } pthread_cond_t; #define PTHREAD_COND_INITIALIZER { 0, 0 } //----------------------------------------------------------------------------- // Condition variable attributes structure typedef struct { int dummy; } pthread_condattr_t; //----------------------------------------------------------------------------- #endif // ifndef CYGONCE_POSIX_MUTTYPES_H // End of muttypes.h
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