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added some code to implement semaphores

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This commit is contained in:
hyunghwan.chung
2016-02-18 17:49:56 +00:00
parent fc7a44ba7d
commit 734082db91
6 changed files with 233 additions and 52 deletions
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24
stix/lib/stix.h
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@ -539,23 +539,36 @@ struct stix_context_t
stix_oop_t slot[1]; /* stack */
};
#define STIX_PROCESS_NAMED_INSTVARS 6
#define STIX_PROCESS_NAMED_INSTVARS 7
typedef struct stix_process_t stix_process_t;
typedef struct stix_process_t* stix_oop_process_t;
struct stix_process_t
{
STIX_OBJ_HEADER;
stix_oop_context_t initial_context;
stix_oop_context_t suspended_context;
stix_oop_context_t runnable_context;
stix_oop_t state; /* SmallInteger */
stix_oop_process_t prev;
stix_oop_process_t next;
stix_oop_t sp; /* stack pointer. SmallInteger */
stix_oop_process_t sem_next;
/* == variable indexed part == */
stix_oop_t slot[1]; /* process stack */
};
#define STIX_SEMAPHORE_NAMED_INSTVARS 3
typedef struct stix_semaphore_t stix_semaphore_t;
typedef struct stix_semaphore_t* stix_oop_semaphore_t;
struct stix_semaphore_t
{
STIX_OBJ_HEADER;
stix_oop_t count; /* SmallInteger */
stix_oop_process_t waiting_head; /* nil or Process */
stix_oop_process_t waiting_tail; /* nil or Process */
};
#define STIX_PROCESS_SCHEDULER_NAMED_INSTVARS 4
typedef struct stix_process_scheduler_t stix_process_scheduler_t;
typedef struct stix_process_scheduler_t* stix_oop_process_scheduler_t;
@ -739,6 +752,7 @@ struct stix_t
stix_oop_t _method_context; /* MethodContext */
stix_oop_t _block_context; /* BlockContext */
stix_oop_t _process; /* Process */
stix_oop_t _semaphore; /* Semaphore */
stix_oop_t _process_scheduler; /* ProcessScheduler */
stix_oop_t _true_class; /* True */
stix_oop_t _false_class; /* False */
@ -785,8 +799,8 @@ extern "C" {
STIX_EXPORT stix_t* stix_open (
stix_mmgr_t* mmgr,
stix_oow_t xtnsize,
stix_oow_t heapsize,
stix_oow_t xtnsize,
stix_oow_t heapsize,
const stix_vmprim_t* vmprim,
stix_errnum_t* errnum
);
@ -798,7 +812,7 @@ STIX_EXPORT void stix_close (
STIX_EXPORT int stix_init (
stix_t* vm,
stix_mmgr_t* mmgr,
stix_oow_t heapsize,
stix_oow_t heapsize,
const stix_vmprim_t* vmprim
);