68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
#include "input.h"
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#include <string.h>
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#include "platform.h"
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void *input_thread_loop(void *arg)
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{
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struct InputThreadHandle *hand = arg;
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struct InputRecordBuf tmp_in = { .head.len = 0, .head.start = 0 };
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struct InputStringBuf tmp_str = { .head.len = 0, .head.start = 0 };
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while (!hand->is_terminating) {
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if (!PlatformReadInput(&tmp_in, &tmp_str))
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return nullptr;
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if (hand->err = pthread_mutex_lock(&hand->mutex))
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return nullptr;
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while (tmp_in.head.len == IO_BUF_SIZE) {
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if (hand->err = pthread_cond_wait(&hand->consume, &hand->mutex))
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return nullptr;
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}
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RingBufferTransfer(IO_BUF_T, hand->in, &tmp_in);
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RingBufferTransfer(STR_BUF_T, hand->str, &tmp_str);
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if (hand->err = pthread_mutex_unlock(&hand->mutex))
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return nullptr;
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}
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return nullptr;
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}
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bool BeginInputThread(
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struct InputThreadHandle *hand,
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struct InputRecordBuf *in,
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struct InputStringBuf *str
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) {
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*hand = (struct InputThreadHandle) {
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.in = in,
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.str = str,
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.mutex = PTHREAD_MUTEX_INITIALIZER,
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.consume = PTHREAD_COND_INITIALIZER,
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.err = 0,
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.is_terminating = false,
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};
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return pthread_create(&hand->thread, nullptr, input_thread_loop, hand) == 0;
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}
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bool EndInputThread(struct InputThreadHandle *hand)
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{
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hand->is_terminating = true;
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if (!PlatformStopInput())
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return false;
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if (!pthread_mutex_destroy(&hand->mutex))
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return false;
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if (!pthread_join(hand->thread, nullptr))
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return false;
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return true;
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} |