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QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
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C Library Reference
C
cnd_broadcast()
Unblock threads waiting on a condition

QNX Momentics IDE User's Guide
This User's Guide describes version 8.0 of the Integrated Development Environment (IDE) that's part of the QNX Tool Suite.
QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
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        Structure that describes user and group credentials
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        Compute the absolute value of a complex number
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        Free cache-coherency resources when the driver is unloaded
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        Invalidate cache lines associated with a data buffer
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        Flush the data cache and/or invalidate the instruction and/or the data cache.
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        Compute the complex arc cosine
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        Compute the complex inverse hyperbolic cosine
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        Compute the complex inverse hyperbolic sine
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        Compute the complex arc tangent
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        Compute the complex inverse hyperbolic tangent
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        Compute the cube root of a number
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        Compute the complex cosine
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        Compute the complex hyperbolic cosine
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        Compute the complex base-e exponential of a complex number
      - cfgetispeed()
        Return the input baud rate that's stored in a termios structure
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        Return the output baud rate that's stored in a termios structure
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        Set terminal attributes
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        Change the properties of a channel
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        Destroy a communications channel
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        Change the current working directory
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        Change the permissions for a file
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        Change the user ID and group ID of a file
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        Change the root directory
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        Compute the imaginary part of a complex number
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        Clear the environment
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        Set to NULL the prefix for the networking stack path for the current thread
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        Free the structure used for extended information about a client connection
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        Return the number of clock ticks used by the program
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        Return the clock ID of the CPU-time clock from a specified process
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        Get the resolution of the clock
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        Get the current time of a clock
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        Get the time of a clock, in nanoseconds
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        Suspend a thread until a timeout or signal occurs, using a specified clock
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        Set a clock
      - ClockAdjust(), ClockAdjust_r()
        Adjust the time of a clock
      - ClockCycles()
        Get the number of clock cycles
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        Get the CPU-time clock ID for a given process and thread
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        Get a clock period
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        Get or set a clock
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        Compute the complex natural (base-e) logarithm of a complex number
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        Close a file
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        Close a directory
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        Close the slogger2 system log
      - _cmdname()
        Find the path used to invoke the current process
      - CMPLX(), CMPLXF(), CMPLXL()
        Create a complex number from its real and imaginary parts
      - cnd_broadcast()
        Unblock threads waiting on a condition
      - cnd_destroy()
        Destroy a condition variable
      - cnd_init()
        Initialize a condition variable
      - cnd_signal()
        Unblock a thread that's waiting on a condition variable
      - cnd_timedwait()
        Wait on a condition variable, with a time limit
      - cnd_wait()
        Wait on a condition variable
      - confstr()
        Get configuration-defined string values
      - conj(), conjf(), conjl()
        Compute the complex conjugate of a complex number
      - ConnectAttach(), ConnectAttach_r()
        Establish a connection between a process and a channel
      - ConnectClientInfo(), ConnectClientInfo_r()
        Get information about a client connection
      - ConnectClientInfoAble()
        Get extended information about a client connection, including abilities
      - ConnectClientInfoExt()
        Get extended information about a client connection
      - ConnectDetach(), ConnectDetach_r()
        Break a connection between a process and a channel
      - ConnectDupFd(), ConnectDupFd_r()
        Support file descriptor duplication
      - ConnectFlags(), ConnectFlags_r()
        Modify or query the flags associated with a connection
      - ConnectServerInfo(), ConnectServerInfo_r()
        Get information about a server connection
      - copysign(), copysignf(), copysignl()
        Copy the sign bit from one number to another
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        Compute the cosine of an angle
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        Compute the hyperbolic cosine
      - cpow(), cpowf(), cpowl()
        Raise a complex number to the power of another complex number
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        Compute the projection of a complex number on the Riemann sphere
      - creal(), crealf(), creall()
        Compute the real part of a complex number
      - creat(), creat64()
        Create and open a file (low-level)
      - crypt()
        Hash a password
      - csin(), csinf(), csinl()
        Compute the complex sine
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        Compute the complex hyperbolic sine
      - csqrt(), csqrtf(), csqrtl()
        Compute the square root of a complex number
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        Compute the complex tangent
      - ctanh(), ctanhf(), ctanhl()
        Compute the complex hyperbolic tangent
      - ctermid()
        Generate the path name of the current controlling terminal
      - ctime(), ctime_r()
        Convert calendar time to local time
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    This document provides a reference for the Wi-Fi Protected Access (WPA) control interface, which provides a C API for the WPA/IEEE 802.11i protocols in Wi-Fi client stations. Application developers who want to control WPA operations and get associated status and event data should read this reference.
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cnd_broadcast()

QNX SDP8.0C Library ReferenceAPIDeveloper

Unblock threads waiting on a condition

Synopsis:

#include <threads.h>

int cnd_broadcast( cnd_t* cond );

Arguments:

cond: A pointer to the cnd_t object for which you want to unblock the threads.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The cnd_broadcast() function unblocks all threads currently blocked on the condition variable cond. The threads are unblocked in priority order. If more than one thread at a particular priority is blocked, those threads are unblocked in FIFO order.

Returns:

thrd_success: Success.
thrd_error: An error occurred.

Classification:

C11


Safety:
Cancellation point	No
Signal handler	Yes
Thread	Yes

Page updated: August 09, 2024