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Keywords:
Notification,
Interrupt,
Asynchronous,
Notify,
Kernel
A sign made for the purpose of giving notice to a person of some occurence, command, or danger; also, a sign, event, or watchword, which has been agreed upon as the occasion of concerted action.
To notify by a signals; to make a signal or signals to; as, to signal a fleet to anchor.
Software interrupts sent to a program to indicate that an important event has occurred. The events can vary from user requests to illegal memory access errors. Some signals, like the interrupt signal, indicate that a user has asked the program to do something that is not in the usual flow of control.
A set of events.
A one byte data sent to a running process that causes it to change state. Killing or suspending a process involves sending the process a signal.
An event-oriented change in state (e.g. a tone, frequency shift, binary value, alarm, message, etc.)
The software mechanism used to indicate that an exception condition (abnormal event) has been detected. For example, a signal can be generated by a program or hardware error, or by request of another program.
Physical coding of information (e.g., a message) capable of transmission through environment
The notification of an event occurring on the system.
A software interrupt sent from the operating system to a program. This can inform the program of any asynchronous event. Signals are used for segment violation, divide by zero, or other hardware problems; they can also be sent as a job control mechanism (stop, continue, kill).
An asynchronous event that occurs during process execution. The receipt of certain signals can cause a process to terminate.
any communication that encodes a message; "signals from the boat suddenly stopped"
a brief message from the kernel that something has happened
a form of software interrupt to the normal execution of a user process
a generic mechanism and can handle any type of external events - a message from a socket, a JMS message, native events, etc
a kind of event that is identified by a string
a mechanism used heavily throughout libjingle to pass messages from one object to another
a message (an integer) sent to a process
a message emitted by an instance of a GtkObject in response to some predetermined element in its environment, e
a message for a process, that an event has happened
a message sent to a process that indicates an event has occurred
a message sent to a process to interrupt it and cause a response
a message sent to your program by the operating system
a message that one process sends to another when some abnormal event takes place or when it wants the other process to do something
an asynchronous event that can happen in a program
an asynchronous notification of an event
an event which occurs upon an object
an externally generated software interrupt delivered to a process (or program)
an object with a history of values (related to "event" times, i
a notification of an event that can be received by a process
a notification sent to a process by the kernel or another process
a notification to a process that some event has occurred
a one-bit message that can be sent from one process to another
a OS-generated notification sent to a process
a short message, sent between two processes or between the kernel and a process
a simplified IPC mechanism that allows a process or thread to be notified of an event
a software interrupt delivered to a process
a software notification to a task or a process of an event
a structure or event that has been adapted for communication
a way for external entities to notify a jiplet of certain events
a way for the kernel (the "core" of the operating system) to communicate with a process
transduction - A stimulation is sent to a cell and is translated into a response
an information source; a person or device that originates a message.
A mechanism by which a process may be notified by the kernal of an event occurring in the system.
A notification sent to a process to indicate an event or an action that should be performed. Signals are used to terminate processes. The following shows the most frequently used signals to terminate a process: SIGHUP- This is a hang-up. It has a value of 1. SIGINT- This is an interrupt. It has a value of 2. SIGKILL- This is a kill. It has a value of 9. SIGTERM- This is a terminate. It has a value of 15.
A signal is a notification that is generated whenever an event occurs. In order for it to have any effect, it needs to be connected to a callback function (also known as a signal handler). See also: Callback, Signal handler.
The way components communicate. When a component sends a signal, it is received by all components connected to the sender. The receiving component only acts on the signal if it has an input socket and method defined for that signal. A component which sends a signal event when there are no components connected does not cause a run-time error. Contrast with a message, which is sent to a single specific object. if the object does not understand the message it raises a run-time exception.
A special flag or interrupts that is used to communicate special events to programs by the operating system and other programs.
(1) A condition that may be reported as a result of an error in program execution. For example, SIGFPE is the signal used to represent erroneous arithmetic operations such as a division by zero. See exception. (2) A mechanism by which a process may be notified of, or affected by, an event occurring in the system. Examples of such events include hardware exceptions and specific actions by processes. The term signal is also used to refer to the event itself. X/Open, . (3) In AIX operating system operations, a method of interprocess communication that simulates software interrupts. IBM.
An asynchronous mechanism for interrupting the processing of a thread. They system delivers a signal to a thread when the application programmer takes explicit or implicit action to cause the signal to be delivered. The signal can be sent to a thread or process, but is always delivered to a specific thread.
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