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Kernel/LibC: Implement alarm() and setitimer()

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This makes vim able to start!
This commit is contained in:
Bananymous
2024-08-01 21:09:31 +03:00
parent da3b30cd94
commit a33b63d066
6 changed files with 139 additions and 0 deletions
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8
kernel/include/kernel/Process.h
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@@ -19,6 +19,7 @@
#include <sys/mman.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <termios.h>
namespace LibELF { class LoadableELF; }
@@ -77,6 +78,7 @@ namespace Kernel
BAN::ErrorOr<long> sys_wait(pid_t pid, int* stat_loc, int options);
BAN::ErrorOr<long> sys_sleep(int seconds);
BAN::ErrorOr<long> sys_nanosleep(const timespec* rqtp, timespec* rmtp);
BAN::ErrorOr<long> sys_setitimer(int which, const itimerval* value, itimerval* ovalue);
BAN::ErrorOr<long> sys_setpwd(const char* path);
BAN::ErrorOr<long> sys_getpwd(char* buffer, size_t size);
@@ -207,6 +209,9 @@ namespace Kernel
BAN::ErrorOr<BAN::String> absolute_path_of(BAN::StringView) const;
// ONLY CALLED BY TIMER INTERRUPT
static void update_alarm_queue();
private:
Process(const Credentials&, pid_t pid, pid_t parent, pid_t sid, pid_t pgrp);
static Process* create_process(const Credentials&, pid_t parent, pid_t sid = 0, pid_t pgrp = 0);
@@ -275,6 +280,9 @@ namespace Kernel
BAN::String m_working_directory;
BAN::Vector<Thread*> m_threads;
uint64_t m_alarm_interval_ns { 0 };
uint64_t m_alarm_wake_time_ns { 0 };
mutable SpinLock m_signal_lock;
struct sigaction m_signal_handlers[_SIGMAX + 1] { };
uint64_t m_signal_pending_mask { 0 };