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optimize ap_add_common_vars() for the common case where r->subprocess_env is empty

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git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@92152 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Brian Pane
2001-11-24 04:22:45 +00:00
parent 758b54d0fd
commit 38b27b0333
1 changed files with 11 additions and 2 deletions
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13
server/util_script.c
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@ -176,8 +176,15 @@ AP_DECLARE(void) ap_add_common_vars(request_rec *r)
/* use a temporary apr_table_t which we'll overlap onto
* r->subprocess_env later
* (exception: if r->subprocess_env is empty at the start,
* write directly into it)
*/
e = apr_table_make(r->pool, 25 + hdrs_arr->nelts);
if (apr_is_empty_table(r->subprocess_env)) {
e = r->subprocess_env;
}
else {
e = apr_table_make(r->pool, 25 + hdrs_arr->nelts);
}
/* First, add environment vars from headers... this is as per
* CGI specs, though other sorts of scripting interfaces see
@ -297,7 +304,9 @@ AP_DECLARE(void) ap_add_common_vars(request_rec *r)
}
}
apr_table_overlap(r->subprocess_env, e, APR_OVERLAP_TABLES_SET);
if (e != r->subprocess_env) {
apr_table_overlap(r->subprocess_env, e, APR_OVERLAP_TABLES_SET);
}
}
/* This "cute" little function comes about because the path info on