libdill: Structured Concurrency for C

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NAME

now - get current time

SYNOPSIS

#include <libdill.h>

int64_t now(void);

DESCRIPTION

Returns current time, in milliseconds.

The function is meant for creating deadlines. For example, a point of time one second from now can be expressed as now() + 1000.

The following values have special meaning and cannot be returned by the function:

0: Immediate deadline.
-1: Infinite deadline.

RETURN VALUE

Current time.

ERRORS

None.

EXAMPLE

int result = chrecv(ch, &val, sizeof(val), now() + 1000);
if(result == -1 && errno == ETIMEDOUT) {
    printf("One second elapsed without receiving a message.\n");
}