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nfssvc(2) -- NFS services
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The nfssvc() system call is used by the NFS daemons to pass information into and out of the kernel and also to enter the kernel as a server daemon. The flags argument consists of several bits that sho... |
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ntp_adjtime(2) -- NTP daemon application interface
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The ntp_adjtime() system call is used as a kernel interface for the Network Time Protocol daemon, ntpd(8). Certain fields of the timex structure are interpreted in either microseconds or nanoseconds, ... |
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ntp_gettime(2) -- NTP user application interface
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The time returned by ntp_gettime() is in a timespec structure, but may be in either microsecond (seconds and microseconds) or nanosecond (seconds and nanoseconds) format. The particular format in use ... |
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open(2) -- open or create a file for reading or writing
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The file name specified by path is opened for reading and/or writing as specified by the argument flags and the file descriptor returned to the calling process. The flags argument may indicate the fil... |
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pathconf(2) -- get configurable pathname variables
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The pathconf() and fpathconf() system calls provide a method for applications to determine the current value of a configurable system limit or option variable associated with a pathname or file descri... |
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pipe(2) -- create descriptor pair for interprocess communication
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The pipe() system call creates a pipe, which is an object allowing bidirectional data flow, and allocates a pair of file descriptors. By convention, the first descriptor is normally used as the read e... |
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poll(2) -- synchronous I/O multiplexing
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The poll() system call examines a set of file descriptors to see if some of them are ready for I/O. The fds argument is a pointer to an array of pollfd structures as defined in (shown below).... |
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posix_madvise(2) -- give advice about use of memory
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The madvise() system call allows a process that has knowledge of its memory behavior to describe it to the system. The posix_madvise() interface is identical and is provided for standards conformance.... |
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pread(2) -- read input
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The read() system call attempts to read nbytes of data from the object referenced by the descriptor d into the buffer pointed to by buf. The readv() system call performs the same action, but scatters ... |
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profil(2) -- control process profiling
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The profil() system call enables or disables program counter profiling of the current process. If profiling is enabled, then at every profiling clock tick, the kernel updates an appropriate count in t... |
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ptrace(2) -- process tracing and debugging
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The ptrace() system call provides tracing and debugging facilities. It allows one process (the tracing process) to control another (the traced process). Most of the time, the traced process runs norma... |
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pwrite(2) -- write output
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The write() system call attempts to write nbytes of data to the object referenced by the descriptor d from the buffer pointed to by buf. The writev() system call performs the same action, but gathers ... |
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quotactl(2) -- manipulate file system quotas
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The quotactl() system call enables, disables and manipulates file system quotas. A quota control command given by cmd operates on the given filename path for the given user id. (NOTE: One should use t... |
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read(2) -- read input
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The read() system call attempts to read nbytes of data from the object referenced by the descriptor d into the buffer pointed to by buf. The readv() system call performs the same action, but scatters ... |
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readlink(2) -- read value of a symbolic link
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The readlink() system call places the contents of the symbolic link path in the buffer buf, which has size bufsiz. The readlink() system call does not append a NUL character to buf. |
