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LibC: Add WIFCONTINUED macro

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Like other systems, we can encode the continued state with 0xffff in the
status value. This is needed for some ports.
This commit is contained in:
SeekingBlues 2022-06-17 00:21:02 +08:00 • committed by Andreas Kling
parent 5a73bf1553
commit 8730e56e88
2 changed files with 2 additions and 1 deletions
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1
Kernel/API/POSIX/sys/wait.h
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@ -18,6 +18,7 @@ extern "C" {
#define WIFEXITED(status) (WTERMSIG(status) == 0) #define WIFEXITED(status) (WTERMSIG(status) == 0)
#define WIFSTOPPED(status) (((status)&0xff) == 0x7f) #define WIFSTOPPED(status) (((status)&0xff) == 0x7f)
#define WIFSIGNALED(status) (((char)(((status)&0x7f) + 1) >> 1) > 0) #define WIFSIGNALED(status) (((char)(((status)&0x7f) + 1) >> 1) > 0)
#define WIFCONTINUED(status) ((status) == 0xffff)
#define WNOHANG 1 #define WNOHANG 1
#define WUNTRACED 2 #define WUNTRACED 2

2
Userland/Libraries/LibC/sys/wait.cpp
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@ -64,7 +64,7 @@ pid_t waitpid(pid_t waitee, int* wstatus, int options)
*wstatus = siginfo.si_status << 8 | 0x7f; *wstatus = siginfo.si_status << 8 | 0x7f;
break; break;
case CLD_CONTINUED: case CLD_CONTINUED:
*wstatus = 0; *wstatus = 0xffff;
return 0; // return 0 if running return 0; // return 0 if running
default: default:
VERIFY_NOT_REACHED(); VERIFY_NOT_REACHED();