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Spresense SDK Library v1.4.2-3df2e9d
mpmutex.h
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1 /****************************************************************************
2  * modules/include/asmp/mpmutex.h
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39 #ifndef __INCLUDE_ASMP_MPMUTEX_H
40 #define __INCLUDE_ASMP_MPMUTEX_H
41 
49 #include <sys/types.h>
50 #include <asmp/types.h>
51 
61 typedef struct mpmutex
62 {
64  int fd;
65  int8_t tag;
66 } mpmutex_t;
67 
70 #ifdef __cplusplus
71 #define EXTERN extern "C"
72 extern "C"
73 {
74 #else
75 #define EXTERN extern
76 #endif
77 
78 /********************************************************************************
79  * Public Function Prototypes
80  ********************************************************************************/
98 int mpmutex_init(mpmutex_t *mutex, key_t key);
99 
110 int mpmutex_destroy(mpmutex_t *mutex);
111 
125 int mpmutex_lock(mpmutex_t *mutex);
126 
141 int mpmutex_trylock(mpmutex_t *mutex);
142 
153 int mpmutex_unlock(mpmutex_t *mutex);
154 
157 #undef EXTERN
158 #ifdef __cplusplus
159 }
160 #endif
161 
164 #endif /* __INCLUDE_ASMP_MPMUTEX_H */
int mpmutex_destroy(mpmutex_t *mutex)
int fd
Definition: mpmutex.h:64
Definition: mpmutex.h:61
int mpmutex_unlock(mpmutex_t *mutex)
int mpmutex_init(mpmutex_t *mutex, key_t key)
int8_t tag
Definition: mpmutex.h:65
int mpmutex_lock(mpmutex_t *mutex)
int mpmutex_trylock(mpmutex_t *mutex)
mpobj_t super
Definition: mpmutex.h:63
Definition: types.h:83
struct mpmutex mpmutex_t