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munlockall(2) -- lock (unlock) the address space of a process
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The mlockall system call locks into memory the physical pages associated with the address space of a process until the address space is unlocked, the process exits, or execs another program image. The... |
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munmap(2) -- remove a mapping
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The munmap() system call deletes the mappings for the specified address range, and causes further references to addresses within the range to generate invalid memory references. |
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nanosleep(2) -- high resolution sleep
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nanosleep() suspends execution of the calling process for the time specified. An unmasked signal will cause it to terminate the sleep early, regardless of the SA_RESTART value on the interrupting sign... |
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nfssvc(2) -- NFS services
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The nfssvc() function 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 show w... |
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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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alpha/outb(2) -- Alpha devices I/O ports and memory access functions
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The functions in libalpha give userland programs access to the I/O ports on the OpenBSD/alpha platform. The in*() functions return data read from the specified I/O port. The out*() functions write dat... |
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alpha/outl(2) -- Alpha devices I/O ports and memory access functions
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The functions in libalpha give userland programs access to the I/O ports on the OpenBSD/alpha platform. The in*() functions return data read from the specified I/O port. The out*() functions write dat... |
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alpha/outw(2) -- Alpha devices I/O ports and memory access functions
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The functions in libalpha give userland programs access to the I/O ports on the OpenBSD/alpha platform. The in*() functions return data read from the specified I/O port. The out*() functions write dat... |
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pathconf(2) -- get configurable pathname variables
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The pathconf() and fpathconf() functions provides a method for applications to determine the current value of a configurable system limit or option variable associated with a pathname or file descript... |
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pipe(2) -- create descriptor pair for interprocess communication
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The pipe() function creates a pipe, which is an object allowing unidirectional data flow, and allocates a pair of file descriptors. The first descriptor connects to the read end of the pipe, and the s... |
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poll(2) -- synchronous I/O multiplexing
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poll() provides a mechanism for multiplexing I/O across a set of file descriptors. It is similar in function to select(2). Unlike select(2), however, it is possible to only pass in data corresponding ... |
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pread(2) -- read input
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read() attempts to read nbytes of data from the object referenced by the descriptor d into the buffer pointed to by buf. readv() performs the same action, but scatters the input data into the iovcnt b... |
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preadv(2) -- read input
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read() attempts to read nbytes of data from the object referenced by the descriptor d into the buffer pointed to by buf. readv() performs the same action, but scatters the input data into the iovcnt b... |
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profil(2) -- control process profiling
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The profil() function enables or disables program counter profiling of the current process. If profiling is enabled, then at every clock tick, the kernel updates an appropriate count in the samples bu... |
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ptrace(2) -- process tracing and debugging
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ptrace() 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 normally, but when it... |
