keepawake.c File Reference

macOS system sleep prevention using IOKit power assertions More...

Go to the source code of this file.

Functions
asciichat_error_t	platform_enable_keepawake (void)
void	platform_disable_keepawake (void)

Detailed Description

macOS system sleep prevention using IOKit power assertions

Definition in file macos/keepawake.c.

Function Documentation

platform_disable_keepawake()

void platform_disable_keepawake

(

void

)

Definition at line 33 of file macos/keepawake.c.

                                      {
  if (g_power_assertion != kIOPMNullAssertionID) {
    IOPMAssertionRelease(g_power_assertion);
    log_debug("Keepawake disabled (released assertion ID: %u)", g_power_assertion);
    g_power_assertion = kIOPMNullAssertionID;
  }
}

platform_enable_keepawake()

asciichat_error_t platform_enable_keepawake

(

void

)

Definition at line 14 of file macos/keepawake.c.

                                                  {
  // macOS: Use IOKit power assertions
  if (g_power_assertion != kIOPMNullAssertionID) {
    log_debug("Keepawake already enabled");
    return ASCIICHAT_OK;
  }
 
  CFStringRef reason = CFSTR("ascii-chat is running");
  IOReturn result = IOPMAssertionCreateWithName(kIOPMAssertionTypePreventSystemSleep, kIOPMAssertionLevelOn, reason,
                                                &g_power_assertion);
 
  if (result != kIOReturnSuccess) {
    return SET_ERRNO(ERROR_PLATFORM_INIT, "Failed to create power assertion (error %d)", result);
  }
 
  log_debug("Keepawake enabled via IOKit (assertion ID: %u)", g_power_assertion);
  return ASCIICHAT_OK;
}