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  2. C signal handling - Wikipedia

    en.wikipedia.org/wiki/C_signal_handling

    In the C Standard Library, signal processing defines how a program handles various signals while it executes. A signal can report some exceptional behavior within the program (such as division by zero), or a signal can report some asynchronous event outside the program (such as someone striking an interactive attention key on a keyboard).

  3. Calling convention - Wikipedia

    en.wikipedia.org/wiki/Calling_convention

    For example, on 32-bit Windows, operating system calls have the stdcall calling convention, whereas many C programs that run there use the cdecl calling convention. To accommodate these differences in calling convention, compilers often permit keywords that specify the calling convention for a given function.

  4. Call processing - Wikipedia

    en.wikipedia.org/wiki/Call_processing

    The sequence of operations performed by a switching system from the acceptance of an incoming call through the final disposition of the call. [1] See call control for a more complete description. The series of steps and processes by which an organization automates the handling of telephone calls (usually incoming calls).

  5. Signal (IPC) - Wikipedia

    en.wikipedia.org/wiki/Signal_(IPC)

    Signal handling is vulnerable to race conditions. As signals are asynchronous, another signal (even of the same type) can be delivered to the process during execution of the signal handling routine. The sigprocmask(2) call can be used to block and unblock delivery of signals. Blocked signals are not delivered to the process until unblocked.

  6. Hook flash - Wikipedia

    en.wikipedia.org/wiki/Hook_flash

    In European networks an “R” button is used in combination with touch tone digits to select various call handling functions. For example: Call Waiting: R1 — Answers incoming call & terminates current call. R2 — Answers current call & allows the user to toggle between calls. R3 — Establishes a 3-party conference.

  7. Procedural programming - Wikipedia

    en.wikipedia.org/wiki/Procedural_programming

    Procedural programming is a programming paradigm, classified as imperative programming, [1] that involves implementing the behavior of a computer program as procedures (a.k.a. functions, subroutines) that call each other. The resulting program is a series of steps that forms a hierarchy of calls to its constituent procedures.

  8. x86 calling conventions - Wikipedia

    en.wikipedia.org/wiki/X86_calling_conventions

    In other words, when the caller makes a procedure call, it can expect that those registers will hold the same value after the callee returns. Thus, making it the callee's responsibility to both save (push at the start) and restore (pop accordingly) them before returning to the caller.

  9. call-with-current-continuation - Wikipedia

    en.wikipedia.org/wiki/Call-with-current-continuation

    For example ((call/cc f) e2) is equivalent to applying f to the current continuation of the expression. The current continuation is given by replacing (call/cc f) by a variable c bound by a lambda abstraction, so the current continuation is (lambda (c) (c e2)). Applying the function f to it gives the final result (f (lambda (c) (c e2))).