X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=man%2Fsd_bus_message_append_string_memfd.xml;fp=man%2Fsd_bus_message_append_string_memfd.xml;h=08f1fd0015e833dbfb90774ec4a1658974934e36;hb=eb0e417895c37dbdb64f18ae95c6b1a7a99f871e;hp=0000000000000000000000000000000000000000;hpb=df890458e39a14b95f8a2c88e8e1c1815e1320d2;p=elogind.git diff --git a/man/sd_bus_message_append_string_memfd.xml b/man/sd_bus_message_append_string_memfd.xml new file mode 100644 index 000000000..08f1fd001 --- /dev/null +++ b/man/sd_bus_message_append_string_memfd.xml @@ -0,0 +1,153 @@ + + + + + + + + + sd_bus_message_append_string_memfd + elogind + + + + A monkey with a typewriter + Zbigniew + Jędrzejewski-Szmek + zbyszek@in.waw.pl + + + + + + sd_bus_message_append_string_memfd + 3 + + + + sd_bus_message_append_string_memfd + sd_bus_message_append_string_iovec + sd_bus_message_append_string_space + + Attach a string to a message + + + + + #include <elogind/sd-bus.h> + + + int sd_bus_message_append_string_memfd + sd_bus_message *m + int memfd + + + + int sd_bus_message_append_string_iovec + sd_bus_message *m + const struct iovec *iov + unsigned n + + + + int sd_bus_message_append_string_space + sd_bus_message *m + size_t size + char **s + + + + + + Description + + The functions + sd_bus_message_append_string_memfd and + sd_bus_message_append_string_iovec can be + used to append a single string (item of type s) + to message m. + + In case of + sd_bus_message_append_string_memfd, the + contents of memfd are the string. They must + satisfy the same constraints as described for the + s type in + sd_bus_message_append_basic3. + + In case of + sd_bus_message_append_string_iovec, the + payload of iov is the string. It must + satisfy the same constraints as described for the + s type in + sd_bus_message_append_basic3. + + The iov argument must point to + n struct iovec + structures. Each structure may have the + iov_base field set, in which case the + memory pointed to will be copied into the message, or unset, in + which case a block of spaces (ASCII 32) of length + iov_len will be inserted. The + memory pointed at by iov may be changed + after this call. + + The + sd_bus_message_append_string_space function appends + space for a string to message m. It behaves + similar to sd_bus_message_append_basic with + type s, but instead of copying a string into + the message, it returns a pointer to the destination area to + the caller in pointer p. Space for the string + of length size plus the terminating + NUL is allocated. + + + + Return Value + + On success, those calls return 0 or a positive integer. On + failure, they returns a negative errno-style error code. + + + + + + Notes + + The functions described here are available as a shared library, + which can be compiled and linked to with the + libelogind pkg-config1 + file. + + + + See Also + + + elogind8, + sd-bus3, + sd_bus_message_append_basic3, + The D-Bus specification + + + +