X-Git-Url: http://ftp.carnet.hr/carnet-debian/scm?p=ossec-hids.git;a=blobdiff_plain;f=src%2Fexternal%2Fpcre2-10.32%2Fdoc%2Fpcre2_jit_stack_assign.3;fp=src%2Fexternal%2Fpcre2-10.32%2Fdoc%2Fpcre2_jit_stack_assign.3;h=33d2e1cbfe79aa415ff1c33a0b5c9b3238a63cdb;hp=0000000000000000000000000000000000000000;hb=3f728675941dc69d4e544d3a880a56240a6e394a;hpb=927951d1c1ad45ba9e7325f07d996154a91c911b diff --git a/src/external/pcre2-10.32/doc/pcre2_jit_stack_assign.3 b/src/external/pcre2-10.32/doc/pcre2_jit_stack_assign.3 new file mode 100644 index 0000000..33d2e1c --- /dev/null +++ b/src/external/pcre2-10.32/doc/pcre2_jit_stack_assign.3 @@ -0,0 +1,59 @@ +.TH PCRE2_JIT_STACK_ASSIGN 3 "28 June 2018" "PCRE2 10.32" +.SH NAME +PCRE2 - Perl-compatible regular expressions (revised API) +.SH SYNOPSIS +.rs +.sp +.B #include +.PP +.nf +.B void pcre2_jit_stack_assign(pcre2_match_context *\fImcontext\fP, +.B " pcre2_jit_callback \fIcallback_function\fP, void *\fIcallback_data\fP);" +.fi +. +.SH DESCRIPTION +.rs +.sp +This function provides control over the memory used by JIT as a run-time stack +when \fBpcre2_match()\fP or \fBpcre2_jit_match()\fP is called with a pattern +that has been successfully processed by the JIT compiler. The information that +determines which stack is used is put into a match context that is subsequently +passed to a matching function. The arguments of this function are: +.sp + mcontext a pointer to a match context + callback a callback function + callback_data a JIT stack or a value to be passed to the callback +.P +If \fImcontext\fP is NULL, the function returns immediately, without doing +anything. +.P +If \fIcallback\fP is NULL and \fIcallback_data\fP is NULL, an internal 32KiB +block on the machine stack is used. +.P +If \fIcallback\fP is NULL and \fIcallback_data\fP is not NULL, +\fIcallback_data\fP must be a valid JIT stack, the result of calling +\fBpcre2_jit_stack_create()\fP. +.P +If \fIcallback\fP not NULL, it is called with \fIcallback_data\fP as an +argument at the start of matching, in order to set up a JIT stack. If the +result is NULL, the internal 32KiB stack is used; otherwise the return value +must be a valid JIT stack, the result of calling +\fBpcre2_jit_stack_create()\fP. +.P +You may safely use the same JIT stack for multiple patterns, as long as they +are all matched in the same thread. In a multithread application, each thread +must use its own JIT stack. For more details, see the +.\" HREF +\fBpcre2jit\fP +.\" +page. +.P +There is a complete description of the PCRE2 native API in the +.\" HREF +\fBpcre2api\fP +.\" +page and a description of the POSIX API in the +.\" HREF +\fBpcre2posix\fP +.\" +page.