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Codechange: Use null pointer literal instead of the NULL macro

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This commit is contained in:
Henry Wilson
2019-04-10 22:07:06 +01:00
committed by Michael Lutz
parent 3b4f224c0b
commit 7c8e7c6b6e
463 changed files with 5674 additions and 5674 deletions
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12
src/music/extmidi.cpp
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@@ -52,7 +52,7 @@ const char *MusicDriver_ExtMidi::Start(const char * const * parm)
if (StrEmpty(command)) command = EXTERNAL_PLAYER " " MIDI_ARG;
#endif
/* Count number of arguments, but include 3 extra slots: 1st for command, 2nd for song title, and 3rd for terminating NULL. */
/* Count number of arguments, but include 3 extra slots: 1st for command, 2nd for song title, and 3rd for terminating nullptr. */
uint num_args = 3;
for (const char *t = command; *t != '\0'; t++) if (*t == ' ') num_args++;
@@ -63,7 +63,7 @@ const char *MusicDriver_ExtMidi::Start(const char * const * parm)
uint p = 1;
while (true) {
this->params[p] = strchr(this->params[p - 1], ' ');
if (this->params[p] == NULL) break;
if (this->params[p] == nullptr) break;
this->params[p][0] = '\0';
this->params[p]++;
@@ -75,7 +75,7 @@ const char *MusicDriver_ExtMidi::Start(const char * const * parm)
this->song[0] = '\0';
this->pid = -1;
return NULL;
return nullptr;
}
void MusicDriver_ExtMidi::Stop()
@@ -103,7 +103,7 @@ void MusicDriver_ExtMidi::StopSong()
bool MusicDriver_ExtMidi::IsSongPlaying()
{
if (this->pid != -1 && waitpid(this->pid, NULL, WNOHANG) == this->pid) {
if (this->pid != -1 && waitpid(this->pid, nullptr, WNOHANG) == this->pid) {
this->pid = -1;
}
if (this->pid == -1 && this->song[0] != '\0') this->DoPlay();
@@ -146,7 +146,7 @@ void MusicDriver_ExtMidi::DoStop()
* 5 seconds = 5000 milliseconds, 10 ms per cycle => 500 cycles. */
for (int i = 0; i < 500; i++) {
kill(this->pid, SIGTERM);
if (waitpid(this->pid, NULL, WNOHANG) == this->pid) {
if (waitpid(this->pid, nullptr, WNOHANG) == this->pid) {
/* It has shut down, so we are done */
this->pid = -1;
return;
@@ -159,6 +159,6 @@ void MusicDriver_ExtMidi::DoStop()
/* Gracefully stopping failed. Do it the hard way
* and wait till the process finally died. */
kill(this->pid, SIGKILL);
waitpid(this->pid, NULL, 0);
waitpid(this->pid, nullptr, 0);
this->pid = -1;
}