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readdir(2) -- read directory entry
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This is not the function you are interested in. Look at readdir(3) for the POSIX conforming C library interface. This page documents the bare kernel system call interface, which can change, and which ... |
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readlink(2) -- read value of a symbolic link
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readlink places the contents of the symbolic link path in the buffer buf, which has size bufsiz. readlink does not append a NUL character to buf. It will truncate the contents (to a length of bufsiz c... |
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readv(2) -- read or write a vector
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readv reads data from file descriptor fd, and puts the result in the buffers described by vector. The number of buffers is specified by count. The buffers are filled in the order specified. Operates j... |
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reboot(2) -- reboot or enable/disable Ctrl-Alt-Del
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The reboot call reboots the system, or enables/disables the reboot keystroke (abbreviated CAD, since the default is Ctrl-Alt-Delete; it can be changed using loadkeys(1)). This system call will fail (w... |
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recv(2) -- receive a message from a socket
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The recvfrom and recvmsg calls are used to receive messages from a socket, and may be used to receive data on a socket whether or not it is connection-oriented. If from is not NULL, and the socket is ... |
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rename(2) -- change the name or location of a file
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rename renames a file, moving it between directories if required. Any other hard links to the file (as created using link(2)) are unaffected. If newpath already exists it will be atomically replaced (... |
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rmdir(2) -- delete a directory
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rmdir deletes a directory, which must be empty. |
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sched_get_priority_max(2) -- get static priority range
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sched_get_priority_max returns the maximum priority value that can be used with the scheduling algorithm identified by policy. sched_get_priority_min returns the minimum priority value that can be use... |
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sched_rr_get_interval(2) -- get the SCHED_RR interval for the named process
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sched_rr_get_interval writes into the timespec structure pointed to by tp the round robin time quantum for the process identified by pid. If pid is zero, the time quantum for the calling process is wr... |
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sched_setparam(2) -- set and get scheduling parameters
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sched_setparam sets the scheduling parameters associated with the scheduling policy for the process identified by pid. If pid is zero, then the parameters of the current process are set. The interpret... |
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sched_setscheduler(2) -- set and get scheduling algorithm/parameters
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sched_setscheduler sets both the scheduling policy and the associated parameters for the process identified by pid. If pid equals zero, the scheduler of the calling process will be set. The interpreta... |
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sched_yield(2) -- yield the processor
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A process can relinquish the processor voluntarily without blocking by calling sched_yield. The process will then be moved to the end of the queue for its static priority and a new process gets to run... |
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select(2) -- synchronous I/O multiplexing
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The functions select and pselect wait for a number of file descriptors to change status. Their function is identical, with three differences: (i) The select function uses a timeout that is a struct ti... |
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semctl(2) -- semaphore control operations
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The function performs the control operation specified by cmd on the semaphore set (or on the semnum-th semaphore of the set) identified by semid. The first semaphore of the set is indicated by a value... |
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semget(2) -- get a semaphore set identifier
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The function returns the semaphore set identifier associated to the value of the argument key. A new set of nsems semaphores is created if key has value IPC_PRIVATE or key isn't IPC_PRIVATE, no exist... |
