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| CHMAKE(3) | libdill Library Functions | CHMAKE(3) |
NAME
chmake - creates a channelSYNOPSIS
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#include <libdill.h> int chmake( int chv[2]);
DESCRIPTION
Creates a bidirectional channel. In case of success handles to the both sides of the channel will be returned in chv parameter.A channel is a synchronization primitive, not a container. It doesn't store any items.
chv: Out parameter. Two handles to the opposite ends of the channel.
RETURN VALUE
In case of success the function returns 0. In case of error it returns -1 and sets errno to one of the values below.ERRORS
- •
- EMFILE: The maximum number of file descriptors in the process are already open.
- •
- ENFILE: The maximum number of file descriptors in the system are already open.
- •
- ENOMEM: Not enough memory.
EXAMPLE
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int ch[2]; int rc = chmake(ch); if(rc == -1) { perror("Cannot create channel"); exit(1); }
SEE ALSO
chdone(3) chmake_mem(3) choose(3) chrecv(3) chsend(3) hclose(3)| libdill |
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