Currently, http_SendMessage was not able to write to write a buffer
due to a bad use of file_buf instead of buf. This bug was introduced by
the 0197-Doxygen-reformating-compiler-warnings patch.
Currently, Upnp_Event_Subscribe always contains an empty chain in the
Sid parameter. This patch now saves the client Subscription ID in this
parameter so Control Points can see and use the same SID in the
Upnp_Event_Subscribe and in the Upnp_Event structures.
This mode can be recognized by the macro __STRICT_ANSI__.
From man gcc:
-ansi
In C mode, this is equivalent to -std=c89. In C++ mode, it is equivalent to
-std=c++98.
This turns off certain features of GCC that are incompatible with ISO C90
(when compiling C code), or of standard (when compiling code), such as the
asm and typeof keywords, and predefined macros such as unix and vax that
identify the type of system you are using. It also enables the undesirable
and rarely used ISO trigraph feature. For the C compiler, it disables
recognition of style // comments as well as the inline keyword.
The alternate keywords _ _asm_ _, _ _extension_ _, _ _inline_ _ and
_ _typeof_ _ continue to work despite -ansi. You would not want to use them
in an ISO C program, of course, but it is useful to put them in header files
that might be included in compilations done with -ansi. Alternate predefined
macros such as _ _unix_ _ and _ _vax_ _ are also available, with or without
-ansi.
The -ansi option does not cause non-ISO programs to be rejected gratuitously.
For that, -pedantic is required in addition to -ansi.
The macro _ _STRICT_ANSI_ _ is predefined when the -ansi option is used.
Some header files may notice this macro and refrain from declaring certain
functions or defining certain macros that the ISO standard doesn't call for;
this is to avoid interfering with any programs that might use these names for
other things.
Functions that would normally be built in but do not have semantics defined
by ISO C (such as alloca and ffs) are not built-in functions when -ansi is
used.
Currently, in notify_send_and_recv function, pupnp waits for
HTTP_DEFAULT_TIMEOUT seconds when trying to send a GENA notification.
When there is a lot of notifications with CPs which was disconnected
without unsusbcribing, all the pupnp threads are blocked on this
timeout. To correct, this issue, this patch adds a new variable,
GENA_NOTIFICATION_SENDING_TIMEOUT, which can be used to lower the
timeout so GENA threads return quickly when writing is impossible. By
the same mean, pupnp waits the CP's answer to the NOTIFY for
HTTP_DEFAULT_TIMEOUT seconds, so this patch adds a new variable,
GENA_NOTIFICATION_ANSWERING_TIMEOUT, to customize this value.
Currently, pupnp is using a blocking connect to sends GENA
notifications. As a result, when there is a lot of notifications with
CPs which were disconnected without unsusbcribing, all the pupnp
threads are blocked for 20s (timeout). To correct this issue, this
patch replace the call to connect with a call to private_connect and add
a compilation flag to disable blocking TCP connections, so if we are not
able to connect to the CP, the notification is lost.
On win32 socket() returns INVALID_SOCKET, which is unsigned,
on error, not -1.
Also, most network functions return SOCKET_ERROR.
This patch tries to make the usage consistent.
