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libcurl-thread.3: Warn memory functions must be thread safe

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Bug: http://curl.haxx.se/mail/lib-2015-07/0149.html
Reported-by: Eric Ridge
This commit is contained in:
Jay Satiro
2015-07-31 01:58:03 -04:00
parent 909f0a82b0
commit 0da1f5dc5c
2 changed files with 15 additions and 7 deletions
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9
docs/libcurl/curl_global_init_mem.3
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@@ -36,9 +36,9 @@ This function works exactly as \fIcurl_global_init(3)\fP with one addition: it
allows the application to set callbacks to replace the otherwise used internal
memory functions.
This man page only adds documentation for the callbacks, see the
\fIcurl_global_init(3)\fP man page for all the rest. When you use this
function, all callback arguments must be set to valid function pointers.
When you use this function, all callback arguments must be set to valid
function pointers. \fBIf you are using libcurl with multiple threads the
callback replacement functions must be thread safe.\fP
The prototypes for the given callbacks should match these:
.IP "void *malloc_callback(size_t size);"
@@ -51,6 +51,9 @@ To replace realloc()
To replace strdup()
.IP "void *calloc_callback(size_t nmemb, size_t size);"
To replace calloc()
.RE
This function is otherwise the same as \fIcurl_global_init(3)\fP, please refer
to that man page for documentation.
.SH "CAUTION"
Manipulating these gives considerable powers to the application to severely
screw things up for libcurl. Take care!