diff options
Diffstat (limited to 'man/man3')
| -rw-r--r-- | man/man3/zmq_bind.3 | 52 | ||||
| -rw-r--r-- | man/man3/zmq_close.3 | 30 | ||||
| -rw-r--r-- | man/man3/zmq_connect.3 | 49 | ||||
| -rw-r--r-- | man/man3/zmq_flush.3 | 37 | ||||
| -rw-r--r-- | man/man3/zmq_init.3 | 40 | ||||
| -rw-r--r-- | man/man3/zmq_msg_close.3 | 32 | ||||
| -rw-r--r-- | man/man3/zmq_msg_copy.3 | 43 | ||||
| -rw-r--r-- | man/man3/zmq_msg_data.3 | 27 | ||||
| -rw-r--r-- | man/man3/zmq_msg_init.3 | 33 | ||||
| -rw-r--r-- | man/man3/zmq_msg_init_data.3 | 55 | ||||
| -rw-r--r-- | man/man3/zmq_msg_init_size.3 | 44 | ||||
| -rw-r--r-- | man/man3/zmq_msg_move.3 | 38 | ||||
| -rw-r--r-- | man/man3/zmq_msg_size.3 | 30 | ||||
| -rw-r--r-- | man/man3/zmq_poll.3 | 71 | ||||
| -rw-r--r-- | man/man3/zmq_recv.3 | 52 | ||||
| -rw-r--r-- | man/man3/zmq_send.3 | 64 | ||||
| -rw-r--r-- | man/man3/zmq_setsockopt.3 | 137 | ||||
| -rw-r--r-- | man/man3/zmq_socket.3 | 110 | ||||
| -rw-r--r-- | man/man3/zmq_strerror.3 | 27 | ||||
| -rw-r--r-- | man/man3/zmq_term.3 | 25 |
20 files changed, 0 insertions, 996 deletions
diff --git a/man/man3/zmq_bind.3 b/man/man3/zmq_bind.3 deleted file mode 100644 index 61d97fa..0000000 --- a/man/man3/zmq_bind.3 +++ /dev/null @@ -1,52 +0,0 @@ -.TH zmq_bind 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_bind \- binds the socket to the specified address -.SH SYNOPSIS -.B int zmq_bind (void *s, const char *addr); -.SH DESCRIPTION -The function binds socket -.IR s -to a particular transport. Actual semantics of the -command depend on the underlying transport mechanism, however, in cases where -peers connect in an asymmetric manner, -.IR zmq_bind -should be called first, -.IR zmq_connect -afterwards. Actual formats of -.IR addr -parameter are defined by individual transports. For a list of supported -transports have a look at -.IR zmq(7) -manual page. - -Note that single socket can be bound (and connected) to -arbitrary number of peers using different transport mechanisms. -.SH RETURN VALUE -In case of success the function returns zero. Otherwise it returns -1 and -sets -.IR errno -to the appropriate value. -.SH ERRORS -.IP "\fBEPROTONOSUPPORT\fP" -unsupported protocol. -.IP "\fBENOCOMPATPROTO\fP" -protocol is not compatible with the socket type. -.IP "\fBEADDRINUSE\fP" -the given address is already in use. -.IP "\fBEADDRNOTAVAIL\fP" -a nonexistent interface was requested or the requested address was not local. -.SH EXAMPLE -.nf -void *s = zmq_socket (context, ZMQ_PUB); -assert (s); -int rc = zmq_bind (s, "inproc://my_publisher"); -assert (rc == 0); -rc = zmq_bind (s, "tcp://eth0:5555"); -assert (rc == 0); -.fi -.SH SEE ALSO -.BR zmq_connect (3) -.BR zmq_socket (3) -.BR zmq (7) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_close.3 b/man/man3/zmq_close.3 deleted file mode 100644 index ad731d3..0000000 --- a/man/man3/zmq_close.3 +++ /dev/null @@ -1,30 +0,0 @@ -.TH zmq_close 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_close \- destroys 0MQ socket -.SH SYNOPSIS -.B int zmq_close (void *s); -.SH DESCRIPTION -Destroys 0MQ socket (one created using -.IR zmq_socket -function). All sockets have to be properly closed before the application -terminates, otherwise memory leaks will occur. Note that any outbound messages -that haven't been psuhed to the network yet and any inbound messages that -haven't been received by the application yet will be dropped on the socket -shutdown. -.SH RETURN VALUE -In case of success the function returns zero. Otherwise it returns -1 and -sets -.IR errno -to the appropriate value. -.SH ERRORS -No errors are defined. -.SH EXAMPLE -.nf -int rc = zmq_close (s); -assert (rc == 0); -.fi -.SH SEE ALSO -.BR zmq_socket (3) -.BR zmq_term (3) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_connect.3 b/man/man3/zmq_connect.3 deleted file mode 100644 index 925b66e..0000000 --- a/man/man3/zmq_connect.3 +++ /dev/null @@ -1,49 +0,0 @@ -.TH zmq_connect 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_connect \- connect the socket to the specified peer -.SH SYNOPSIS -.B int zmq_connect (void *s, const char *addr); -.SH DESCRIPTION -The function connect socket -.IR s -to the peer identified by -.IR addr . -Actual semantics of the command depend on the underlying transport mechanism, -however, in cases where peers connect in an asymmetric manner, -.IR zmq_bind -should be called first, -.IR zmq_connect -afterwards. Formats of the -.IR addr -parameter are defined by individual transports. For a list of supported -transports have a look at -.IR zmq(7) -manual page. - -Note that single socket can be connected (and bound) to -arbitrary number of peers using different transport mechanisms. -.SH RETURN VALUE -In case of success the function returns zero. Otherwise it returns -1 and -sets -.IR errno -to the appropriate value. -.SH ERRORS -.IP "\fBEPROTONOSUPPORT\fP" -unsupported protocol. -.IP "\fBENOCOMPATPROTO\fP" -protocol is not compatible with the socket type. -.SH EXAMPLE -.nf -void *s = zmq_socket (context, ZMQ_SUB); -assert (s); -int rc = zmq_connect (s, "inproc://my_publisher"); -assert (rc == 0); -rc = zmq_connect (s, "tcp://server001:5555"); -assert (rc == 0); -.fi -.SH SEE ALSO -.BR zmq_bind (3) -.BR zmq_socket (3) -.BR zmq (7) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_flush.3 b/man/man3/zmq_flush.3 deleted file mode 100644 index eb2a719..0000000 --- a/man/man3/zmq_flush.3 +++ /dev/null @@ -1,37 +0,0 @@ -.TH zmq_flush 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_flush \- flushes pre-sent messages to the socket -.SH SYNOPSIS -.B int zmq_flush (void *s); -.SH DESCRIPTION -Flushes all the pre-sent messages - i.e. those that have been sent with -ZMQ_NOFLUSH flag - to the socket. This functionality improves performance in -cases where several messages are sent during a single business operation. -It should not be used as a transaction - ACID properties are not guaranteed. -Note that calling -.IR zmq_send -without ZMQ_NOFLUSH flag automatically flushes all previously pre-sent messages. -.SH RETURN VALUE -In case of success the function returns zero. Otherwise it returns -1 and -sets -.IR errno -to the appropriate value. -.SH ERRORS -.IP "\fBENOTSUP\fP" -function isn't supported by particular socket type. -.IP "\fBEFSM\fP" -function cannot be called at the moment, because socket is not in the -approprite state. -.SH EXAMPLE -.nf -rc = zmq_send (s, &msg1, ZMQ_NOFLUSH); -assert (rc == 0); -rc = zmq_send (s, &msg2, ZMQ_NOFLUSH); -assert (rc == 0); -rc = zmq_flush (s); -assert (rc == 0); -.fi -.SH SEE ALSO -.BR zmq_send (3) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_init.3 b/man/man3/zmq_init.3 deleted file mode 100644 index 6b5e75f..0000000 --- a/man/man3/zmq_init.3 +++ /dev/null @@ -1,40 +0,0 @@ -.TH zmq_init 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_init \- initialises 0MQ context -.SH SYNOPSIS -.B void *zmq_init (int app_threads, int io_threads, int flags); -.SH DESCRIPTION -Initialises 0MQ context. -.IR app_threads -specifies maximal number of application threads that can own open sockets -at the same time. At least one application thread should be defined. -.IR io_threads -specifies the size of thread pool to handle I/O operations. The value shouldn't -be negative. Zero can be used in case only in-process messaging is going to be -used, i.e. there will be no I/O traffic. - -.IR flags -argument is a combination of the flags defined below: -.IP "\fBZMQ_POLL\fP" -flag specifying that the sockets within this context should be pollable (see -.IR zmq_poll -). Pollable sockets may add a little latency to the message transfer when -compared to non-pollable sockets. - -.SH RETURN VALUE -Function returns context handle is successful. Otherwise it returns NULL and -sets errno to one of the values below. -.SH ERRORS -.IP "\fBEINVAL\fP" -there's less than one application thread allocated, or number of I/O threads -is negative. -.SH EXAMPLE -.nf -void *ctx = zmq_init (1, 1, ZMQ_POLL); -assert (ctx); -.fi -.SH SEE ALSO -.BR zmq_term (3) -.BR zmq_socket (3) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_msg_close.3 b/man/man3/zmq_msg_close.3 deleted file mode 100644 index e601ea2..0000000 --- a/man/man3/zmq_msg_close.3 +++ /dev/null @@ -1,32 +0,0 @@ -.TH zmq_msg_close 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_msg_close \- destroys 0MQ message -.SH SYNOPSIS -.B int zmq_msg_close (zmq_msg_t *msg); -.SH DESCRIPTION -Deallocates message -.IR msg -including any associated buffers (unless the buffer is -shared with another message). Not calling this function can result in -memory leaks. -.SH RETURN VALUE -In case of success the function returns zero. Otherwise it returns -1 and -sets -.IR errno -to the appropriate value. -.SH ERRORS -No errors are defined. -.SH EXAMPLE -.nf -zmq_msg_t msg; -rc = zmq_msg_init_size (&msg, 1000000); -assert (rc = 0); -rc = zmq_msg_close (&msg); -assert (rc = 0); -.fi -.SH SEE ALSO -.BR zmq_msg_init (3) -.BR zmq_msg_init_size (3) -.BR zmq_msg_init_data (3) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_msg_copy.3 b/man/man3/zmq_msg_copy.3 deleted file mode 100644 index acb8389..0000000 --- a/man/man3/zmq_msg_copy.3 +++ /dev/null @@ -1,43 +0,0 @@ -.TH zmq_msg_copy 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_msg_copy \- copies content of a message to another message -.SH SYNOPSIS -.B int zmq_msg_copy (zmq_msg_t *dest, zmq_msg_t *src); -.SH DESCRIPTION -Copy the -.IR src -message to -.IR dest . -The original content of -.IR dest -is orderly deallocated. -Caution: The implementation may choose not to physically copy the data, rather -to share the buffer between two messages. Thus avoid modifying message data -after the message was copied. Doing so can modify multiple message instances. -If what you need is actual hard copy, allocate new message using -.IR zmq_msg_size -and copy the data using -.IR memcpy . -.SH RETURN VALUE -In case of success the function returns zero. Otherwise it returns -1 and -sets -.IR errno -to the appropriate value. -.SH ERRORS -No errors are defined. -.SH EXAMPLE -.nf -zmq_msg_t dest; -rc = zmq_msg_init (&dest); -assert (rc == 0); -rc = zmq_msg_copy (&dest, &src); -assert (rc == 0); -.fi -.SH SEE ALSO -.BR zmq_msg_move (3) -.BR zmq_msg_init (3) -.BR zmq_msg_init_size (3) -.BR zmq_msg_init_data (3) -.BR zmq_msg_close (3) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_msg_data.3 b/man/man3/zmq_msg_data.3 deleted file mode 100644 index ef3cba8..0000000 --- a/man/man3/zmq_msg_data.3 +++ /dev/null @@ -1,27 +0,0 @@ -.TH zmq_msg_data 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_msg_data \- retrieves pointer to the message content -.SH SYNOPSIS -.B void *zmq_msg_data (zmq_msg_t *msg); -.SH DESCRIPTION -Returns pointer to message data. Always use this function to access the data, -never use -.IR zmq_msg_t -members directly. -.SH RETURN VALUE -Pointer to the message data. -.SH ERRORS -No errors are defined. -.SH EXAMPLE -.nf -zmq_msg_t msg; -rc = zmq_msg_init_size (&msg, 100); -memset (zmq_msg_data (&msg), 0, 100); -.fi -.SH SEE ALSO -.BR zmq_msg_init (3) -.BR zmq_msg_init_size (3) -.BR zmq_msg_init_data (3) -.BR zmq_msg_close (3) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_msg_init.3 b/man/man3/zmq_msg_init.3 deleted file mode 100644 index 80d51d2..0000000 --- a/man/man3/zmq_msg_init.3 +++ /dev/null @@ -1,33 +0,0 @@ -.TH zmq_msg_init 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_msg_init \- initialises empty 0MQ message -.SH SYNOPSIS -.B int zmq_msg_init (zmq_msg_t *msg); -.SH DESCRIPTION -Initialises 0MQ message zero bytes long. The function is most useful -to initialise a -.IR zmq_msg_t -structure before receiving a message. -.SH RETURN VALUE -In case of success the function returns zero. Otherwise it returns -1 and -sets -.IR errno -to the appropriate value. -.SH ERRORS -No errors are defined. -.SH EXAMPLE -.nf -zmq_msg_t msg; -rc = zmq_msg_init (&msg); -assert (rc == 0); -rc = zmq_recv (s, &msg, 0); -assert (rc == 0); -.fi -.SH SEE ALSO -.BR zmq_msg_close (3) -.BR zmq_msg_init_size (3) -.BR zmq_msg_init_data (3) -.BR zmq_msg_data (3) -.BR zmq_msg_size (3) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_msg_init_data.3 b/man/man3/zmq_msg_init_data.3 deleted file mode 100644 index 0af95be..0000000 --- a/man/man3/zmq_msg_init_data.3 +++ /dev/null @@ -1,55 +0,0 @@ -.TH zmq_msg_init_data 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_msg_init \- initialises 0MQ message from the given data -.SH SYNOPSIS -.nf -.B typedef void (zmq_free_fn) (void *data, void *hint); -.B int zmq_msg_init_data (zmq_msg_t *msg, void *data, size_t size, zmq_free_fn *ffn, void *hint); -.fi -.SH DESCRIPTION -Initialise a message from a supplied buffer. Message isn't copied, -instead 0MQ infrastructure takes ownership of the buffer located at address -.IR data , -.IR size -bytes long. -Deallocation function ( -.IR ffn -) will be called once the data are not needed anymore. When using a static -constant buffer, -.IR ffn -may be NULL to prevent subsequent deallocation. If needed, additional -.IR hint -can be passed to the initialisation function. It's an opaque pointer that will -be later on passed to -.IR ffn -as a second argument. -.SH RETURN VALUE -In case of success the function returns zero. Otherwise it returns -1 and -sets -.IR errno -to the appropriate value. -.SH ERRORS -No errors are defined. -.SH EXAMPLE -.nf -void my_free (void *data, void *hint) {free (data);} - - ... - -void *data = malloc (6); -assert (data); -memcpy (data, "ABCDEF", 6); -zmq_msg_t msg; -rc = zmq_msg_init_data (&msg, data, 6, my_free, NULL); -assert (rc == 0); -rc = zmq_send (s, &msg, 0); -assert (rc == 0); -.fi -.SH SEE ALSO -.BR zmq_msg_close (3) -.BR zmq_msg_init (3) -.BR zmq_msg_init_size (3) -.BR zmq_msg_data (3) -.BR zmq_msg_size (3) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_msg_init_size.3 b/man/man3/zmq_msg_init_size.3 deleted file mode 100644 index cc7a71e..0000000 --- a/man/man3/zmq_msg_init_size.3 +++ /dev/null @@ -1,44 +0,0 @@ -.TH zmq_msg_init_size 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_msg_init \- initialises 0MQ message of a specified size -.SH SYNOPSIS -.B int zmq_msg_init_size (zmq_msg_t *msg, size_t size); -.SH DESCRIPTION -Initialises 0MQ message -.IR size -bytes long. The implementation chooses whether it is more efficient to store -message content on the stack (small messages) or on the heap (large messages). -Therefore, never access message data directly via -.IR zmq_msg_t -members, rather use -.IR zmq_msg_data -and -.IR zmq_msg_size -functions to get message data and size. Note that the message data are not -nullified to avoid the associated performance impact. Thus you -should expect your message to contain bogus data after this call. -.SH RETURN VALUE -In case of success the function returns zero. Otherwise it returns -1 and -sets -.IR errno -to the appropriate value. -.SH ERRORS -.IP "\fBENOMEM\fP" -memory to hold the message cannot be allocated. -.SH EXAMPLE -.nf -zmq_msg_t msg; -rc = zmq_msg_init_size (&msg, 6); -assert (rc == 0); -memcpy (zmq_msg_data (&msg), "ABCDEF", 6); -rc = zmq_send (s, &msg, 0); -assert (rc == 0); -.fi -.SH SEE ALSO -.BR zmq_msg_close (3) -.BR zmq_msg_init (3) -.BR zmq_msg_init_data (3) -.BR zmq_msg_data (3) -.BR zmq_msg_size (3) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_msg_move.3 b/man/man3/zmq_msg_move.3 deleted file mode 100644 index 8663585..0000000 --- a/man/man3/zmq_msg_move.3 +++ /dev/null @@ -1,38 +0,0 @@ -.TH zmq_msg_move 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_msg_move \- moves content of a message to another message -.SH SYNOPSIS -.B int zmq_msg_move (zmq_msg_t *dest, zmq_msg_t *src); -.SH DESCRIPTION -Move the content of the message from -.IR src -to -.IR dest . -The content isn't copied, just moved. -.IR src -becomes an empty message after the call. Original content of -.IR dest -message is deallocated. -.SH RETURN VALUE -In case of success the function returns zero. Otherwise it returns -1 and -sets -.IR errno -to the appropriate value. -.SH ERRORS -No errors are defined. -.SH EXAMPLE -.nf -zmq_msg_t dest; -rc = zmq_msg_init (&dest); -assert (rc == 0); -rc = zmq_msg_move (&dest, &src); -assert (rc == 0); -.fi -.SH SEE ALSO -.BR zmq_msg_copy (3) -.BR zmq_msg_init (3) -.BR zmq_msg_init_size (3) -.BR zmq_msg_init_data (3) -.BR zmq_msg_close (3) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_msg_size.3 b/man/man3/zmq_msg_size.3 deleted file mode 100644 index aa1f8b0..0000000 --- a/man/man3/zmq_msg_size.3 +++ /dev/null @@ -1,30 +0,0 @@ -.TH zmq_msg_size 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_msg_size \- retrieves size of the message content -.SH SYNOPSIS -.B size_t zmq_msg_size (zmq_msg_t *msg); -.SH DESCRIPTION -Returns size of the message data. Always use this function to get the size, -never use -.IR zmq_msg_t -members directly. -.SH RETURN VALUE -Size of the message data (bytes). -.SH ERRORS -No errors are defined. -.SH EXAMPLE -.nf -zmq_msg_t msg; -rc = zmq_msg_init (&msg); -assert (rc == 0); -rc = zmq_recv (s, &msg, 0); -assert (rc == 0); -size_t msg_size = zmq_msg_size (&msg); -.fi -.SH SEE ALSO -.BR zmq_msg_init (3) -.BR zmq_msg_init_size (3) -.BR zmq_msg_init_data (3) -.BR zmq_msg_close (3) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_poll.3 b/man/man3/zmq_poll.3 deleted file mode 100644 index f70bf18..0000000 --- a/man/man3/zmq_poll.3 +++ /dev/null @@ -1,71 +0,0 @@ -.TH zmq_poll 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_poll \- polls for events on a set of 0MQ and POSIX sockets -.SH SYNOPSIS -.B int zmq_poll (zmq_pollitem_t *items, int nitems, long timeout); -.SH DESCRIPTION -Waits for the events specified by -.IR items -parameter. Number of items in the array is determined by -.IR nitems -argument. Each item in the array looks like this: - -.nf -typedef struct -{ - void *socket; - int fd; - short events; - short revents; -} zmq_pollitem_t; -.fi - -0MQ socket to poll on is specified by -.IR socket . -In case you want to poll on standard POSIX socket, set -.IR socket -to NULL and fill the POSIX file descriptor to -.IR fd . -.IR events -specifies which events to wait for. It's a combination of the values below. -Once the call exits, -.IR revent -will be filled with events that have actually occured on the socket. The field -will contain a combination of the values below. - -.IP "\fBZMQ_POLLIN\fP" -poll for incoming messages. -.IP "\fBZMQ_POLLOUT\fP" -wait while message can be set socket. Poll will return if a message of at least -one byte can be written to the socket. However, there is no guarantee that -arbitrarily large message can be sent. - -.IR timeout -argument specifies an upper limit on the time for which -.IR zmq_poll -will block, in microseconds. Specifying a negative value in timeout means -an infinite timeout. - -.SH RETURN VALUE -Function returns number of items signaled or -1 in the case of error. -.SH ERRORS -.IP "\fBEFAULT\fP" -there's a 0MQ socket in the pollset belonging to a different application thread. -.IP "\fBENOTSUP\fP" -0MQ context was initialised without ZMQ_POLL flag. I/O multiplexing is disabled. -.SH EXAMPLE -.nf -zmq_pollitem_t items [2]; -items [0].socket = s; -items [0].events = ZMQ_POLLIN; -items [1].socket = NULL; -items [1].fd = my_fd; -items [1].events = ZMQ_POLLIN; - -int rc = zmq_poll (items, 2); -assert (rc != -1); -.fi -.SH SEE ALSO -.BR zmq_socket (3) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_recv.3 b/man/man3/zmq_recv.3 deleted file mode 100644 index 8a961bb..0000000 --- a/man/man3/zmq_recv.3 +++ /dev/null @@ -1,52 +0,0 @@ -.TH zmq_recv 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_recv \- retrieves a message from the socket -.SH SYNOPSIS -.B int zmq_recv (void *s, zmq_msg_t *msg, int flags); -.SH DESCRIPTION -Receive a message from the socket -.IR s , -store it in -.IR msg . -Any content previously in -.IR msg -will be properly deallocated. -.IR flags -argument can be combination of the flags described below. - -.IP "\fBZMQ_NOBLOCK\fP" -The flag specifies that the operation should be performed in -non-blocking mode. I.e. if it cannot be processed immediately, -error should be returned with -.IR errno -set to EAGAIN. - -.SH RETURN VALUE -In case of success the function returns zero. Otherwise it returns -1 and -sets -.IR errno -to the appropriate value. -.SH ERRORS -.IP "\fBEAGAIN\fP" -it's a non-blocking receive and there's no message available at the moment. -.IP "\fBENOTSUP\fP" -function isn't supported by particular socket type. -.IP "\fBEFSM\fP" -function cannot be called at the moment, because socket is not in the -appropriate state. This error may occur with sockets that switch between -several states (e.g. ZMQ_REQ). -.SH EXAMPLE -.nf -zmq_msg_t msg; -int rc = zmq_msg_init (&msg); -assert (rc == 0); -rc = zmq_recv (s, &msg, 0); -assert (rc == 0); -.fi -.SH SEE ALSO -.BR zmq_send (3) -.BR zmq_msg_init (3) -.BR zmq_msg_data (3) -.BR zmq_msg_size (3) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_send.3 b/man/man3/zmq_send.3 deleted file mode 100644 index c6644fc..0000000 --- a/man/man3/zmq_send.3 +++ /dev/null @@ -1,64 +0,0 @@ -.TH zmq_send 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_send \- sends a message -.SH SYNOPSIS -.B int zmq_send (void *s, zmq_msg_t *msg, int flags); -.SH DESCRIPTION -Send the message -.IR msg -to the socket -.IR s . -.IR flags -argument can be combination the flags described below. - -.IP "\fBZMQ_NOBLOCK\fP" -The flag specifies that the operation should be performed in -non-blocking mode. I.e. if it cannot be processed immediately, -error should be returned with -.IR errno -set to EAGAIN. - -.IP "\fBZMQ_NOFLUSH\fP" -The flag specifies that -.IR zmq_send -should not flush the message downstream immediately. Instead, it should batch -ZMQ_NOFLUSH messages and send them downstream only once -.IR zmq_flush -is invoked. This is an optimisation for cases where several messages are sent -in a single business transaction. However, the effect is measurable only in -extremely high-perf scenarios (million messages a second or so). -If that's not your case, use standard flushing send instead. - -.SH RETURN VALUE -In case of success the function returns zero. Otherwise it returns -1 and -sets -.IR errno -to the appropriate value. -.SH ERRORS -.IP "\fBEAGAIN\fP" -it's a non-blocking send and message cannot be sent at the moment. -.IP "\fBENOTSUP\fP" -function isn't supported by particular socket type. -.IP "\fBEFSM\fP" -function cannot be called at the moment, because socket is not in the -appropriate state. This error may occur with sockets that switch between -several states (e.g. ZMQ_REQ). -.SH EXAMPLE -.nf -zmq_msg_t msg; -int rc = zmq_msg_init_size (&msg, 6); -assert (rc == 0); -memset (zmq_msg_data (&msg), 'A', 6); -rc = zmq_send (s, &msg, 0); -assert (rc == 0); -.fi -.SH SEE ALSO -.BR zmq_flush (3) -.BR zmq_recv (3) -.BR zmq_msg_init (3) -.BR zmq_msg_init_size (3) -.BR zmq_msg_init_data (3) -.BR zmq_msg_data (3) -.BR zmq_msg_size (3) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_setsockopt.3 b/man/man3/zmq_setsockopt.3 deleted file mode 100644 index f1dd9cb..0000000 --- a/man/man3/zmq_setsockopt.3 +++ /dev/null @@ -1,137 +0,0 @@ -.TH zmq_setsockopt 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_setsockopt \- sets a specified option on a 0MQ socket -.SH SYNOPSIS -.B int zmq_setsockopt (void *s, int option, const void *optval, size_t optvallen); -.SH DESCRIPTION -Sets an option on the socket. -.IR option -argument specifies the option from the list below. -.IR optval -is a pointer to the value to set, -.IR optvallen -is the size of the value in bytes. - -.IP "\fBZMQ_HWM\fP" -High watermark for the message pipes associated with the socket. The water -mark cannot be exceeded. If the messages don't fit into the pipe emergency -mechanisms of the particular socket type are used (block, drop etc.) If HWM -is set to zero, there are no limits for the content of the pipe. - -Type: int64_t Unit: messages Default: 0 - -.IP "\fBZMQ_LWM\fP" -Low watermark makes sense only if high watermark is defined (i.e. is non-zero). -When the emergency state is reached when messages overflow the pipe, the -emergency lasts at most till the size of the pipe decreases to low watermark. -Normal state is resumed at that point. - -Type: int64_t Unit: messages Default: 0 - -.IP "\fBZMQ_SWAP\fP" -Swap allows the pipe to exceed high watermark. However, the data are written -to the disk rather than held in the memory. Until high watermark is -exceeded there is no disk activity involved though. The value of the option -defines maximal size of the swap file. - -Type: int64_t Unit: bytes Default: 0 - -.IP "\fBZMQ_AFFINITY\fP" -Affinity defines which threads in the thread pool will be used to handle -newly created sockets. This way you can dedicate some of the threads (CPUs) -to a specific work. Value of 0 means no affinity. Work is distributed -fairly among the threads in the thread pool. For non-zero values, the lowest -bit corresponds to the thread 1, second lowest bit to the thread 2 etc. -Thus, value of 3 means that from now on newly created sockets will handle -I/O activity exclusively using threads no. 1 and 2. - -Type: int64_t Unit: N/A (bitmap) Default: 0 - -.IP "\fBZMQ_IDENTITY\fP" -Identity of the socket. Identity is important when restarting applications. -If the socket has no identity, each run of the application is completely -separated from other runs. However, with identity application reconnects to -existing infrastructure left by the previous run. Thus it may receive -messages that were sent in the meantime, it shares pipe limits with the -previous run etc. - -Type: string Unit: N/A Default: NULL - -.IP "\fBZMQ_SUBSCRIBE\fP" -Applicable only to ZMQ_SUB socket type. It establishes new message filter. -When ZMQ_SUB socket is created all the incoming messages are filtered out. -This option allows you to subscribe for all messages (""), or messages -beginning with specific prefix (e.g. "animals.mammals.dogs."). Multiple -filters can be attached to a single 'sub' socket. In that case message passes -if it matches at least one of the filters. - -Type: string Unit: N/A Default: N/A - -.IP "\fBZMQ_UNSUBSCRIBE\fP" -Applicable only to ZMQ_SUB socket type. Removes existing message filter. -The filter specified must match the string passed to ZMQ_SUBSCRIBE options -exactly. If there were several instances of the same filter created, -this options removes only one of them, leaving the rest in place -and functional. - -Type: string Unit: N/A Default: N/A - -.IP "\fBZMQ_RATE\fP" -This option applies only to sending side of multicast transports (pgm & udp). -It specifies maximal outgoing data rate that an individual sender socket -can send. - -Type: uint64_t Unit: kilobits/second Default: 100 - -.IP "\fBZMQ_RECOVERY_IVL\fP" -This option applies only to multicast transports (pgm & udp). It specifies -how long can the receiver socket survive when the sender is inaccessible. -Keep in mind that large recovery intervals at high data rates result in -very large recovery buffers, meaning that you can easily overload your box -by setting say 1 minute recovery interval at 1Gb/s rate (requires -7GB in-memory buffer). - -Type: uint64_t Unit: seconds Default: 10 - -.IP "\fBZMQ_MCAST_LOOP\fP" -This option applies only to multicast transports (pgm & udp). Value of 1 -means that the mutlicast packets can be received on the box they were sent -from. Setting the value to 0 disables the loopback functionality which -can have negative impact on the performance. If possible, disable -the loopback in production environments. - -Type: uint64_t Unit: N/A (boolean value) Default: 1 - -.IP "\fBZMQ_SNDBUF\fP" -Sets the underlying kernel transmit buffer size to the specified size. See -.IR SO_SNDBUF -POSIX socket option. Value of zero means leaving the OS default unchanged. - -Type: uint64_t Unit: bytes Default: 0 - -.IP "\fBZMQ_RCVBUF\fP" -Sets the underlying kernel receive buffer size to the specified size. See -.IR SO_RCVBUF -POSIX socket option. Value of zero means leaving the OS default unchanged. - -Type: uint64_t Unit: bytes Default: 0 - -.SH RETURN VALUE -In case of success the function returns zero. Otherwise it returns -1 and -sets -.IR errno -to the appropriate value. -.SH ERRORS -.IP "\fBEINVAL\fP" -unknown option, a value with incorrect length or invalid value. -.SH EXAMPLE -.nf -int rc = zmq_setsockopt (s, ZMQ_SUBSCRIBE, "", 0); -assert (rc == 0); -.fi -.SH SEE ALSO -.BR zmq_socket (3) -.BR zmq (7) - -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_socket.3 b/man/man3/zmq_socket.3 deleted file mode 100644 index aceb306..0000000 --- a/man/man3/zmq_socket.3 +++ /dev/null @@ -1,110 +0,0 @@ -.TH zmq_socket 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_socket \- creates 0MQ socket -.SH SYNOPSIS -.B void *zmq_socket (void *context, int type); -.SH DESCRIPTION -Open a socket within the specified -.IR context . -To create a context, use -.IR zmq_init -function. -.IR type -argument can be one of the values defined below. Note that each socket is owned -by exactly one thread (the one that it was created from) and should not be used -from any other thread. - -.IP "\fBZMQ_P2P\fP" -Socket to communicate with a single peer. Allows for only a single connect or a -single bind. There's no message routing or message filtering involved. - -Compatible peer sockets: ZMQ_P2P. - -.IP "\fBZMQ_PUB\fP" -Socket to distribute data. Recv function is not implemented for this socket -type. Messages are distributed in fanout fashion to all the peers. - -Compatible peer sockets: ZMQ_SUB. - -.IP "\fBZMQ_SUB\fP" -Socket to subscribe for data. Send function is not implemented for this -socket type. Initially, socket is subscribed for no messages. Use ZMQ_SUBSCRIBE -option to specify which messages to subscribe for. - -Compatible peer sockets: ZMQ_PUB. - -.IP "\fBZMQ_REQ\fP" -Socket to send requests and receive replies. Requests are load-balanced among -all the peers. This socket type allows only an alternated sequence of -send's and recv's. - -Compatible peer sockets: ZMQ_REP, ZMQ_XREP. - -.IP "\fBZMQ_REP\fP" -Socket to receive requests and send replies. This socket type allows -only an alternated sequence of recv's and send's. Each send is routed to -the peer that issued the last received request. - -Compatible peer sockets: ZMQ_REQ, ZMQ_XREQ. - -.IP "\fBZMQ_XREQ\fP" -Special socket type to be used in request/reply middleboxes such as -.BR zmq_queue(7) . -Requests forwarded using this socket type should be tagged by a proper prefix -identifying the original requester. Replies received by this socket are tagged -with a proper postfix that can be use to route the reply back to the original -requester. - -Compatible peer sockets: ZMQ_REP, ZMQ_XREP. - -.IP "\fBZMQ_XREP\fP" -Special socket type to be used in request/reply middleboxes such as -.BR zmq_queue(7) . -Requests received using this socket are already properly tagged with prefix -identifying the original requester. When sending a reply via XREP socket the -message should be tagged with a prefix from a corresponding request. - -Compatible peer sockets: ZMQ_REQ, ZMQ_XREQ. - -.IP "\fBZMQ_UPSTREAM\fP" -Socket to receive messages from up the stream. Messages are fair-queued -from among all the connected peers. Send function is not implemented for -this socket type. - -Compatible peer sockets: ZMQ_DOWNSTREAM. - -.IP "\fBZMQ_DOWNSTREAM\fP" -Socket to send messages down stream. Messages are load-balanced among all the -connected peers. Recv function is not implemented for this socket type. - -Compatible peer sockets: ZMQ_UPSTREAM. - -.SH RETURN VALUE -Function returns socket handle is successful. Otherwise it returns NULL and -sets errno to one of the values below. -.SH ERRORS -.IP "\fBEINVAL\fP" -invalid socket type. -.IP "\fBEMTHREAD\fP" -the number of application threads allowed to own 0MQ sockets was exceeded. See -.IR app_threads -parameter to -.IR zmq_init -function. -.SH EXAMPLE -.nf -void *s = zmq_socket (context, ZMQ_PUB); -assert (s); -int rc = zmq_bind (s, "tcp://192.168.0.1:5555"); -assert (rc == 0); -.fi -.SH SEE ALSO -.BR zmq_init (3) -.BR zmq_setsockopt (3) -.BR zmq_bind (3) -.BR zmq_connect (3) -.BR zmq_send (3) -.BR zmq_flush (3) -.BR zmq_recv (3) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_strerror.3 b/man/man3/zmq_strerror.3 deleted file mode 100644 index 1ee2efe..0000000 --- a/man/man3/zmq_strerror.3 +++ /dev/null @@ -1,27 +0,0 @@ -.TH zmq_strerror 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_strerror \- returns string describing the error number -.SH SYNOPSIS -.B const char *zmq_strerror (int errnum); -.SH DESCRIPTION -As 0MQ defines few additional (non-POSIX) error codes, standard -.IR strerror -isn't capable of translating those errors into human readable strings. Instead, -.IR zmq_strerror -should be used. -.SH RETURN VALUE -Returns string describing the error number. -.SH ERRORS -No errors are defined. -.SH EXAMPLE -.nf -void *ctx = zmq_init (1, 1, 0); -if (!ctx) { - printf ("error occured during zmq_init: %s\\n", zmq_strerror (errno)); - abort (); -} -.fi -.SH SEE ALSO -.BR zmq (7) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> diff --git a/man/man3/zmq_term.3 b/man/man3/zmq_term.3 deleted file mode 100644 index b0b8962..0000000 --- a/man/man3/zmq_term.3 +++ /dev/null @@ -1,25 +0,0 @@ -.TH zmq_term 3 "" "(c)2007-2010 iMatix Corporation" "0MQ User Manuals" -.SH NAME -zmq_term \- terminates 0MQ context -.SH SYNOPSIS -.B int zmq_term (void *context); -.SH DESCRIPTION -Destroys 0MQ context. However, if there are still any sockets open within -the context, -.IR zmq_term -succeeds but shutdown of the context is delayed till the last socket is closed. -.SH RETURN VALUE -Function returns zero is successful. Otherwise it returns -1 and -sets errno to one of the values below. -.SH ERRORS -No errors are defined. -.SH EXAMPLE -.nf -int rc = zmq_term (context); -assert (rc == 0); -.fi -.SH SEE ALSO -.BR zmq_init (3) -.BR zmq_close (3) -.SH AUTHOR -Martin Sustrik <sustrik at 250bpm dot com> |