atomicio.hh File Reference

#include <unistd.h>

Go to the source code of this file.

Namespaces
namespace	gem5
	Copyright (c) 2024 Arm Limited All rights reserved.

Macros
#define	STATIC_MSG(fd, m)
	Statically allocate a string and write it to a file descriptor.
#define	STATIC_ERR(m)
	Statically allocate a string and write it to STDERR.

Functions
ssize_t	gem5::atomic_read (int fd, void *s, size_t n)
ssize_t	gem5::atomic_write (int fd, const void *s, size_t n)

Macro Definition Documentation

STATIC_ERR

#define STATIC_ERR

(

m

)

Value:

STATIC_MSG(STDERR_FILENO, m)

Statically allocate a string and write it to STDERR.

Warning

The return value will from atomic_write will be ignored which means that errors will be ignored. This is normally fine as this macro is intended to be used in fatal signal handlers where error handling might not be feasible.

Definition at line 67 of file atomicio.hh.

Referenced by gem5::abortHandler(), gem5::trace::OstreamLogger::logMessage(), gem5::print_backtrace(), gem5::raiseFatalSignal(), and gem5::segvHandler().

STATIC_MSG

#define STATIC_MSG	(		fd,
			m )

Value:

    do {                                                        \
        static const char msg[] = m;                            \
        atomic_write(fd, msg, sizeof(msg) - 1);                 \
    } while (0)

Statically allocate a string and write it to a file descriptor.

Warning

The return value will from atomic_write will be ignored which means that errors will be ignored. This is normally fine as this macro is intended to be used in fatal signal handlers where error handling might not be feasible.

Definition at line 53 of file atomicio.hh.