Linux call list/usr/include/ASM/unistd. h

I. Process Control: Fork Create a new process Clone Create a sub-process based on specified conditions Execve Run executable files Exit Abort a process _ Exit Stop the current process immediately Getdtablesize Maximum number of files that a process can open Getpgid Obtains the ID of a specified process group. Setpgid Set the flag number of the specified process group Getpgrp Get the ID of the current process group Setpgrp Set the flag number of the current process group Getpid Get process ID Getppid Obtain the parent process ID Getpriority Get scheduling priority Setpriority Set scheduling priority Modify_ldt Local description table of the read/write process Nanosleep Specifies the time for the process to sleep. Nice Change the priority of a time-based process Pause Pending process and waiting for Signal Personality Set the process running domain Prctl Perform specific operations on processes Ptrace Process Tracking Sched_get_priority_max Obtain the maximum static priority Sched_get_priority_min Get the lower limit of Static Priority Sched_getparam Obtain the scheduling parameters of a process. Sched_getscheduler Obtains the scheduling policy of a specified process. Sched_rr_get_interval Obtain the time slice length of a real-time process scheduled by RR Algorithm Sched_setparam Set process scheduling Parameters Sched_setscheduler Set Scheduling Policies and parameters for a specified process Sched_yield The process takes the initiative to let out the processor and waits for itself to wait for the end of the scheduling queue Vfork Create a sub-process for executing new programs. It is often used together with execve. Wait Wait for the sub-process to terminate Wait3 See wait Waitpid Wait for the specified sub-process to terminate Wait4 See waitpid Capget Obtain process Permissions Capset Set process Permissions Getsid Get meeting ID number Setsid Set meeting ID Back to Top Ii. File System Control 1. file read/write operations Fcntl File Control Open Open a file Creat Create a new file Close Close file description Read Read files Write Write files Readv Read data from a file into a buffer Array Writev Write Data in the buffer array to a file Pread Random File Read Pwrite Random file write Lseek Move file pointer _ Llseek Move the file pointer in a 64-bit address space DUP Copy the description of an opened file Dup2 Copy the file description according to the specified conditions Flock Add/unlock files Poll I/O multiplexing Truncate File Truncation Ftruncate See truncate Umask Set the File Permission mask Fsync Write the part of the file in the memory back to the disk. 2. File System Operations Access Determine File accessibility Chdir Change current working directory Fchdir See chdir Chmod Change file Mode Fchmod See chmod Chown Change the owner or user group of a file Fchown See chown Lchown See chown Chroot Change root directory Stat Retrieve File status information Lstat See stat Fstat See stat Statfs Retrieve File System Information Fstatfs See statfs Readdir Read directory items Getdents Read directory items Mkdir Create directory Mknod Create an index Node Rmdir Delete directory Rename File rename Link Create Link Symlink Create a symbolic link Unlink Delete Link Readlink Value of the read Symbolic Link Mount Install a File System Umount Detach a File System Ustat Retrieve File System Information Utime Change the file access modification time Utimes See utime Quotactl Disk Quota Control Iii. System Control IOCTL I/O total control functions _ Sysctl Read/write System Parameters Acct Enable or disable process accounting Getrlimit Obtain the upper limit of system resources Setrlimit Set system resource limit Getrusage Obtain system resource usage Uselib Select the binary function library to use Ioperm Set port I/O Permissions Iopl Change process I/O permission level Outb Low-level port operations Reboot Restart Swapon Open swap files and devices Swapoff Disable swap files and devices Bdflush Control the bdflush daemon Sysfs Obtain the file system types supported by the core Sysinfo Obtain system information Adjtimex Adjust system clock Alarm Set an alarm for a process Getitimer Get the timer Value Setitimer Set the timer Value Gettimeofday Time and time zone Settimeofday Set Time and time zone Stime Set system date and time Time Obtain system time Times Process running time Uname Obtain the name, version, host, and other information of the current UNIX system. Vhangup Suspend current terminal Nfsservctl Control the NFS Daemon Vm86 Enter the simulated 8086 Mode Create_module Create module items that can be loaded Delete_module Delete module items that can be loaded Init_module Initialization module Query_module Query module information * Get_kernel_syms Obtain the core symbol, which has been replaced by query_module Iv. Memory Management BRK Change Data Segment space allocation Sbrk See BRK Mlock Memory Page locking Munlock Memory Page unlock Mlockall Call the process to lock all memory pages Munlockall Call the process to unlock all memory pages MMAP Ing Virtual Memory Page Munmap Remove Memory Page ing Mremap Remap the virtual memory address Msync Write the data in the ing memory back to the disk Mprotect Set memory image protection Getpagesize Get page size Sync Write memory buffer data back to Hard Disk Cacheflush Writes the content in the specified buffer to the disk. V. Network Management Getdomainname Retrieve Domain Name Setdomainname Set Domain Name Gethostid Obtain the host ID Sethostid Set host ID Gethostname Obtain the Host Name Sethostname Set Host Name Vi. Socket Control Socketcall Socket System Call Socket Establish socket Bind Bind socket to Port Connect Connect to a remote host Accept Response to socket connection request Send Send messages through socket Sendto Send UDP messages Sendmsg See send Recv Receive information through socket Recvfrom Receive UDP Information Recvmsg See Recv Listen Listen to socket Port Select Round Robin of multiple synchronous I/O Shutdown Close the connection on the socket Getsockname Obtain the local socket name Getpeername Obtain the socket name of the contact. Getsockopt Port fetch settings Setsockopt Set port Parameters Sendfile Transmit data between files or ports Socketpair Create a pair of connected anonymous sockets VII. User Management Getuid Get user ID Setuid Set User ID Getgid Get group ID Setgid Set Group flag number Getegid Get valid group ID Setegid Set valid group ID Geteuid Get valid user ID Seteuid Set valid user ID Setregid Set true and valid group ID numbers respectively Setreuid Set real and valid user ID numbers respectively Getresgid Obtain the true, valid, and saved group ID numbers respectively. Setresgid Set true, valid, and saved group ID numbers respectively. Getresuid Obtain the real, valid, and saved user ID numbers respectively. Setresuid Set real, valid, and saved user ID numbers respectively Setfsgid Set the group ID used for file system check Setfsuid Set the user ID used for file system check Getgroups Retrieve the list of post-completion group flag Setgroups Set the post-completion group flag list 8. inter-process communication IPC Inter-process communication control calls 1. Signal Sigaction Set the processing method for the specified signal Sigprocmask Blocks or unblocks signals in a set of signals based on parameters. Sigpending Set a queue for the specified blocked Signal Sigsuspend Pending a process to wait for a specific signal Signal See Signal Kill Send a signal to a process or process group * Sigblock Add a signal to the blocked signal mask, which has been replaced by sigprocmask * Siggetmask Obtain the existing blocking signal mask, which has been replaced by sigprocmask * Sigsetmask Use the given signal mask to replace the existing blocking signal mask, which has been replaced by sigprocmask. * Sigmask Converts a given signal to a mask, which has been replaced by sigprocmask. * Sigpause Same as sigsuspend, which has been replaced by sigsuspend Sigvec Signal processing functions for BSD compatibility, similar to sigaction Ssetmask The signal processing function of ansi c, similar to sigaction 2. Messages Msgctl Message control operations Msgget Get Message Queue Msgsnd Send message Msgrcv Retrieve message 3. Pipelines Pipe Create MPs queue 4. semaphores Semctl Semaphore Control Semget Obtain a set of semaphores Semop Semaphore operation 5. Shared Memory Shmctl Control shared memory Shmget Get shared memory Shmat Connect to shared memory Shmdt Remove shared memory