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91 lines
3.9 KiB
91 lines
3.9 KiB
5 years ago
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<class name = "zstr" state = "stable">
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<!--
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Copyright (c) the Contributors as noted in the AUTHORS file.
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This file is part of CZMQ, the high-level C binding for 0MQ:
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http://czmq.zeromq.org.
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This Source Code Form is subject to the terms of the Mozilla Public
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License, v. 2.0. If a copy of the MPL was not distributed with this
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file, You can obtain one at http://mozilla.org/MPL/2.0/.
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-->
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sending and receiving strings
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<method name = "recv" singleton = "1">
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Receive C string from socket. Caller must free returned string using
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zstr_free(). Returns NULL if the context is being terminated or the
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process was interrupted.
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<argument name = "source" type = "sockish" />
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<return type = "string" fresh = "1" />
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</method>
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<method name = "recvx" singleton = "1">
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Receive a series of strings (until NULL) from multipart data.
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Each string is allocated and filled with string data; if there
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are not enough frames, unallocated strings are set to NULL.
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Returns -1 if the message could not be read, else returns the
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number of strings filled, zero or more. Free each returned string
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using zstr_free(). If not enough strings are provided, remaining
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multipart frames in the message are dropped.
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<argument name = "source" type = "sockish" />
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<argument name = "string_p" type = "string" by_reference = "1" variadic = "1" />
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<return type = "integer" />
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</method>
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<method name = "send" singleton = "1">
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Send a C string to a socket, as a frame. The string is sent without
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trailing null byte; to read this you can use zstr_recv, or a similar
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method that adds a null terminator on the received string. String
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may be NULL, which is sent as "".
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<argument name = "dest" type = "sockish" />
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<argument name = "string" type = "string" />
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<return type = "integer" />
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</method>
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<method name = "sendm" singleton = "1">
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Send a C string to a socket, as zstr_send(), with a MORE flag, so that
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you can send further strings in the same multi-part message.
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<argument name = "dest" type = "sockish" />
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<argument name = "string" type = "string" />
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<return type = "integer" />
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</method>
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<method name = "sendf" singleton = "1">
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Send a formatted string to a socket. Note that you should NOT use
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user-supplied strings in the format (they may contain '%' which
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will create security holes).
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<argument name = "dest" type = "sockish" />
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<argument name = "format" type = "format" />
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<return type = "integer" />
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</method>
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<method name = "sendfm" singleton = "1">
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Send a formatted string to a socket, as for zstr_sendf(), with a
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MORE flag, so that you can send further strings in the same multi-part
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message.
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<argument name = "dest" type = "sockish" />
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<argument name = "format" type = "format" />
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<return type = "integer" />
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</method>
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<method name = "sendx" singleton = "1">
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Send a series of strings (until NULL) as multipart data
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Returns 0 if the strings could be sent OK, or -1 on error.
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<argument name = "dest" type = "sockish" />
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<argument name = "string" type = "string" variadic = "1" />
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<return type = "integer" />
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</method>
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<method name = "str" singleton = "1" state = "draft" >
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Accepts a void pointer and returns a fresh character string. If source
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is null, returns an empty string.
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<argument name = "source" type = "sockish" />
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<return type = "string" fresh = "1" />
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</method>
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<method name = "free" singleton = "1">
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Free a provided string, and nullify the parent pointer. Safe to call on
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a null pointer.
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<argument name = "string_p" type = "string" by_reference = "1" />
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</method>
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</class>
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