thrserv.c File Reference

#include <Serv/sysserv.h>
#include <Hal/AA64/sched.h>
#include <Hal/AA64/aa64lowlevel.h>
#include <process.h>
#include <loader.h>
#include <_null.h>
#include <Drivers/uart.h>
#include <aucon.h>
#include <Mm/shm.h>
#include <Mm/mmap.h>
#include <signal.h>
#include <timer.h>
#include <Log/klog.h>

Include dependency graph for thrserv.c:

Functions
uint64_t	GetThreadID ()
	GetThreadID – returns current id of thread.
int	GetProcessID ()
	GetProcessID – returns currently running process id.
int	ProcessExit ()
	ProcessExit – marks a process as died, only available from the main thread of the process.
int	ProcessWaitForTermination (int pid)
	ProcessWaitForTermination – wait for termination of a child process.
int	CreateProcess (int parent_id, char *name)
	CreateProcess – creates a new process slot.
int	ProcessSleep (uint64_t ms)
	ProcessSleep – put the current thread to sleep and process to busy wait state.
void	setuprint ()
int	PauseThread ()
	PauseThread – pause the currently running thread.
int	ProcessLoadExec (int proc_id, char *filename, int argc, char **argv)
	ProcessLoadExec – loads an executable to a process slot.
int	SetFileToProcess (int fileno, int dest_fdidx, int proc_id)
	SetFileToProcess – copies a file from one process to other.
int	CreateUserThread (void(*entry)(), char *name)
	CreateUserThread – creates an user mode thread.
size_t	GetEnvironmenBlock ()
	GetEnvironmentBlock – returns environment block of this process.
void	SignalReturn (int signum)
	SignalReturn – returns from a signal handler.
int	SendSignal (int pid, int signum)
	SendSignal – send a signal to destination thread.
int	SetSignal (int signo, AuSignalHandler handler)
int	Alarm (uint64_t seconds)
	Alarm – schedules a timer for next one-shot.
int	SetITimer (int which, const itimerval_t *new_value, itimerval_t *old_value)
int	GetITimer (int which, const itimerval_t *curr_value)

Detailed Description

BSD 2-Clause License

Copyright (c) 2022-2025, Manas Kamal Choudhury All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Function Documentation

Alarm()

int Alarm

(

uint64_t

seconds

)

Alarm – schedules a timer for next one-shot.

Parameters

seconds

– amount of second to consider

CreateProcess()

int CreateProcess	(	int	parent_id,
		char *	name
	)

CreateProcess – creates a new process slot.

Parameters

parent_id	– parent process id
name	– name of the current process slot

CreateUserThread()

int CreateUserThread	(	void(*)()	entry,
		char *	name
	)

CreateUserThread – creates an user mode thread.

Returns

the thread index within the process

GetEnvironmenBlock()

size_t GetEnvironmenBlock

(

)

GetEnvironmentBlock – returns environment block of this process.

GetITimer()

int GetITimer	(	int	which,
		const itimerval_t *	curr_value
	)

GetProcessID()

int GetProcessID

(

)

GetProcessID – returns currently running process id.

Returns

current process's ID

GetThreadID()

uint64_t GetThreadID

(

)

GetThreadID – returns current id of thread.

PauseThread()

int PauseThread

(

)

PauseThread – pause the currently running thread.

BSD 2-Clause License

Copyright (c) 2022-2023, Manas Kamal Choudhury All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

ProcessExit()

int ProcessExit

(

)

ProcessExit – marks a process as died, only available from the main thread of the process.

ProcessExit – marks a process as died.

ProcessLoadExec()

int ProcessLoadExec	(	int	proc_id,
		char *	filename,
		int	argc,
		char **	argv
	)

ProcessLoadExec – loads an executable to a process slot.

Parameters

proc_id	– newly created process slot
filename	– path of the executable
argc	– argument count
argv	– pointer to argument list

ProcessSleep()

int ProcessSleep

(

uint64_t

ms

)

ProcessSleep – put the current thread to sleep and process to busy wait state.

Parameters

ms	– millisecond

ProcessWaitForTermination()

int ProcessWaitForTermination

(

int

pid

)

ProcessWaitForTermination – wait for termination of a child process.

Parameters

pid	– child process id, if -1 then any process

SendSignal()

int SendSignal	(	int	pid,
		int	signum
	)

SendSignal – send a signal to destination thread.

SendSignal – sends a signal to desired process note here pid means thread id.

Parameters

pid	– process id
signum	– signal number

SetFileToProcess()

int SetFileToProcess	(	int	fileno,
		int	dest_fdidx,
		int	proc_id
	)

SetFileToProcess – copies a file from one process to other.

Parameters

fileno	– file number of the current process
dest_fdidx	– destination process file index
proc_id	– destination process id

SetITimer()

int SetITimer	(	int	which,
		const itimerval_t *	new_value,
		itimerval_t *	old_value
	)

SetSignal()

int SetSignal	(	int	signo,
		AuSignalHandler	handler
	)

setuprint()

void setuprint ( )

extern

SignalReturn()

void SignalReturn

(

int

signum

)

SignalReturn – returns from a signal handler.