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Edit File: memcached_increment.3

.\" Man page generated from reStructuredText. . .TH "MEMCACHED_INCREMENT" "3" "February 09, 2014" "1.0.18" "libmemcached" .SH NAME memcached_increment \- Incrementing and Decrementing Values . .nr rst2man-indent-level 0 . .de1 rstReportMargin \\$1 \\n[an-margin] level \\n[rst2man-indent-level] level margin: \\n[rst2man-indent\\n[rst2man-indent-level]] - \\n[rst2man-indent0] \\n[rst2man-indent1] \\n[rst2man-indent2] .. .de1 INDENT .\" .rstReportMargin pre: . RS \\$1 . nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin] . nr rst2man-indent-level +1 .\" .rstReportMargin post: .. .de UNINDENT . RE .\" indent \\n[an-margin] .\" old: \\n[rst2man-indent\\n[rst2man-indent-level]] .nr rst2man-indent-level -1 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]] .in \\n[rst2man-indent\\n[rst2man-indent-level]]u .. . .nr rst2man-indent-level 0 . .de1 rstReportMargin \\$1 \\n[an-margin] level \\n[rst2man-indent-level] level margin: \\n[rst2man-indent\\n[rst2man-indent-level]] - \\n[rst2man-indent0] \\n[rst2man-indent1] \\n[rst2man-indent2] .. .de1 INDENT .\" .rstReportMargin pre: . RS \\$1 . nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin] . nr rst2man-indent-level +1 .\" .rstReportMargin post: .. .de UNINDENT . RE .\" indent \\n[an-margin] .\" old: \\n[rst2man-indent\\n[rst2man-indent-level]] .nr rst2man-indent-level -1 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]] .in \\n[rst2man-indent\\n[rst2man-indent-level]]u .. .SH SYNOPSIS .sp #include <libmemcached/memcached.h> .INDENT 0.0 .TP .B memcached_return_t memcached_increment(memcached_st\fI\ *ptr\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, uint32_t\fI\ offset\fP, uint64_t\fI\ *value\fP) .UNINDENT .INDENT 0.0 .TP .B memcached_return_t memcached_decrement(memcached_st\fI\ *ptr\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, uint32_t\fI\ offset\fP, uint64_t\fI\ *value\fP) .UNINDENT .INDENT 0.0 .TP .B memcached_return_t memcached_increment_with_initial(memcached_st\fI\ *ptr\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, uint64_t\fI\ offset\fP, uint64_t\fI\ initial\fP, time_t\fI\ expiration\fP, uint64_t\fI\ *value\fP) .UNINDENT .INDENT 0.0 .TP .B memcached_return_t memcached_decrement_with_initial(memcached_st\fI\ *ptr\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, uint64_t\fI\ offset\fP, uint64_t\fI\ initial\fP, time_t\fI\ expiration\fP, uint64_t\fI\ *value\fP) .UNINDENT .INDENT 0.0 .TP .B memcached_return_t memcached_increment_by_key(memcached_st\fI\ *ptr\fP, const char\fI\ *group_key\fP, size_t\fI\ group_key_length\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, uint32_t\fI\ offset\fP, uint64_t\fI\ *value\fP) .UNINDENT .INDENT 0.0 .TP .B memcached_return_t memcached_decrement_by_key(memcached_st\fI\ *ptr\fP, const char\fI\ *group_key\fP, size_t\fI\ group_key_length\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, uint32_t\fI\ offset\fP, uint64_t\fI\ *value\fP) .UNINDENT .INDENT 0.0 .TP .B memcached_return_t memcached_increment_with_initial_by_key(memcached_st\fI\ *ptr\fP, const char\fI\ *group_key\fP, size_t\fI\ group_key_length\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, uint64_t\fI\ offset\fP, uint64_t\fI\ initial\fP, time_t\fI\ expiration\fP, uint64_t\fI\ *value\fP) .UNINDENT .INDENT 0.0 .TP .B memcached_return_t memcached_decrement_with_initial_by_key(memcached_st\fI\ *ptr\fP, const char\fI\ *group_key\fP, size_t\fI\ group_key_length\fP, const char\fI\ *key\fP, size_t\fI\ key_length\fP, uint64_t\fI\ offset\fP, uint64_t\fI\ initial\fP, time_t\fI\ expiration\fP, uint64_t\fI\ *value\fP) .UNINDENT .sp Compile and link with \-lmemcached .SH DESCRIPTION .sp \fImemcached(1)\fP servers have the ability to increment and decrement keys (overflow and underflow are not detected). This gives you the ability to use memcached to generate shared sequences of values. .sp memcached_increment takes a key and keylength and increments the value by the offset passed to it. The value is then returned via the uint32_t value pointer you pass to it. .sp memcached_decrement takes a key and keylength and decrements the value by the offset passed to it. The value is then returned via the uint32_t value pointer you pass to it. .sp memcached_increment_with_initial takes a key and keylength and increments the value by the offset passed to it. If the object specified by key does not exist, one of two things may happen: If the expiration value is MEMCACHED_EXPIRATION_NOT_ADD, the operation will fail. For all other expiration values, the operation will succeed by seeding the value for that key with a initial value to expire with the provided expiration time. The flags will be set to zero.The value is then returned via the uint32_t value pointer you pass to it. memcached_increment_with_initial is only available when using the binary protocol. .sp memcached_decrement_with_initial takes a key and keylength and decrements the value by the offset passed to it. If the object specified by key does not exist, one of two things may happen: If the expiration value is MEMCACHED_EXPIRATION_NOT_ADD, the operation will fail. For all other expiration values, the operation will succeed by seeding the value for that key with a initial value to expire with the provided expiration time. The flags will be set to zero.The value is then returned via the uint32_t value pointer you pass to it. memcached_decrement_with_initial is only available when using the binary protocol. .sp \fI\%memcached_increment_by_key()\fP, \fI\%memcached_decrement_by_key()\fP, \fI\%memcached_increment_with_initial_by_key()\fP, and \fI\%memcached_decrement_with_initial_by_key()\fP are master key equivalents of the above. .SH RETURN .sp A value of type \fBmemcached_return_t\fP is returned. On success that value will be \fBMEMCACHED_SUCCESS\fP\&. Use memcached_strerror to translate this value to a printable string. .SH HOME .sp To find out more information please check: \fI\%http://libmemcached.org/\fP .SH SEE ALSO .sp \fImemcached(1)\fP \fIlibmemcached(3)\fP \fImemcached_strerror(3)\fP .SH AUTHOR Brian Aker .SH COPYRIGHT 2011-2013, Brian Aker DataDifferential, http://datadifferential.com/ .\" Generated by docutils manpage writer. .