84 lines
1.9 KiB
C
84 lines
1.9 KiB
C
#include "intr.h"
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#include "util/log.h"
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#include <assert.h>
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bool
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sc_intr_init(struct sc_intr *intr) {
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bool ok = sc_mutex_init(&intr->mutex);
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if (!ok) {
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LOGE("Could not init intr mutex");
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return false;
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}
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intr->socket = SC_SOCKET_NONE;
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intr->process = SC_PROCESS_NONE;
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atomic_store_explicit(&intr->interrupted, false, memory_order_relaxed);
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return true;
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}
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bool
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sc_intr_set_socket(struct sc_intr *intr, sc_socket socket) {
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assert(intr->process == SC_PROCESS_NONE);
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sc_mutex_lock(&intr->mutex);
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bool interrupted =
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atomic_load_explicit(&intr->interrupted, memory_order_relaxed);
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if (!interrupted) {
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intr->socket = socket;
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}
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sc_mutex_unlock(&intr->mutex);
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return !interrupted;
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}
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bool
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sc_intr_set_process(struct sc_intr *intr, sc_pid pid) {
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assert(intr->socket == SC_SOCKET_NONE);
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sc_mutex_lock(&intr->mutex);
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bool interrupted =
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atomic_load_explicit(&intr->interrupted, memory_order_relaxed);
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if (!interrupted) {
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intr->process = pid;
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}
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sc_mutex_unlock(&intr->mutex);
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return !interrupted;
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}
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void
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sc_intr_interrupt(struct sc_intr *intr) {
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sc_mutex_lock(&intr->mutex);
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atomic_store_explicit(&intr->interrupted, true, memory_order_relaxed);
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// No more than one component to interrupt
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assert(intr->socket == SC_SOCKET_NONE ||
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intr->process == SC_PROCESS_NONE);
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if (intr->socket != SC_SOCKET_NONE) {
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LOGD("Interrupting socket");
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net_interrupt(intr->socket);
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intr->socket = SC_SOCKET_NONE;
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}
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if (intr->process != SC_PROCESS_NONE) {
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LOGD("Interrupting process");
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sc_process_terminate(intr->process);
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intr->process = SC_PROCESS_NONE;
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}
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sc_mutex_unlock(&intr->mutex);
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}
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void
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sc_intr_destroy(struct sc_intr *intr) {
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assert(intr->socket == SC_SOCKET_NONE);
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assert(intr->process == SC_PROCESS_NONE);
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sc_mutex_destroy(&intr->mutex);
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}
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