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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>
#include <errno.h>
#include "hw_thread.h"
static void *hw_thread_function(HWThread ctx) {
int err;
int chunk_id;
HWRunFunction *runs;
HWRunFunction run;
HWSched sched;
void *hwctx;
sched = ctx->sched;
runs = ctx->run;
hwctx = ctx->hwctx;
hw_sched_lock(sched, job_cond);
hw_sched_lock(sched, compl_cond);
ctx->status = HW_THREAD_STATUS_IDLE;
hw_sched_broadcast(sched, compl);
hw_sched_unlock(sched, compl_cond);
while (sched->status) {
hw_sched_wait(sched, job);
if (!sched->status) break;
hw_sched_unlock(sched, job_cond);
run = runs[sched->entry];
chunk_id = hw_sched_get_chunk(sched, ctx->thread_id);
/* Should be after get_chunk, since we can check if it's first time */
ctx->status = HW_THREAD_STATUS_RUNNING;
while (chunk_id >= 0) {
err = run(ctx, hwctx, chunk_id, sched->ctx);
if (err) {
fprintf(stderr, "Error exectuing code, %i\n", err);
pthread_exit(NULL);
}
chunk_id = hw_sched_get_chunk(sched, ctx->thread_id);
}
hw_sched_lock(sched, job_cond);
hw_sched_lock(sched, compl_cond);
ctx->status = HW_THREAD_STATUS_DONE;
hw_sched_broadcast(sched, compl);
hw_sched_unlock(sched, compl_cond);
}
hw_sched_unlock(sched, job_cond);
pthread_exit(NULL);
}
HWThread hw_thread_create(HWSched sched, int thread_id, void *hwctx, HWRunFunction *run_func, HWFreeFunction free_func) {
int err;
HWThread ctx;
ctx = (HWThread)malloc(sizeof(HWThreadS));
if (!ctx) return ctx;
memset(ctx, 0, sizeof(HWThreadS));
ctx->sched = sched;
ctx->hwctx = hwctx;
ctx->run = run_func;
ctx->free = free_func;
ctx->thread_id = thread_id;
ctx->status = HW_THREAD_STATUS_INIT;
err = pthread_create(&ctx->thread, NULL, (void*(*)(void*))hw_thread_function, ctx);
if (err) {
fprintf(stderr, "Error spawn thread, errno: %i\n", errno);
hw_thread_destroy(ctx);
return NULL;
}
return ctx;
}
void hw_thread_destroy(HWThread ctx) {
if (ctx->thread) {
pthread_join(ctx->thread, NULL);
}
if (ctx->data) {
free(ctx->data);
}
if (ctx->free) {
ctx->free(ctx->hwctx);
}
free(ctx);
}
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