add restart_psession and end_psession hooks

Change of way the packet objects are created/initialised
If the protocol gets changed, ever, we can decide at runtime
easily which protocol to use by instantiating the right protocol
obje

Change of way the packet objects are created/initialised
If the protocol gets changed, ever, we can decide at runtime
easily which protocol to use by instantiating the right protocol
object. But this is restricted to the structure of the packets, not
the flow.

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Move this function to MYSQLND_NET as it works on the
php stream

magic numbers to macros

refactoring : move more network related functions to
mysqlnd_net.c . Now communication is split on two levels:
- logical (functions send and receive)
- physical (functions network_read an

refactoring : move more network related functions to
mysqlnd_net.c . Now communication is split on two levels:
- logical (functions send and receive)
- physical (functions network_read and network_write)

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During refactoring of the function mysqlnd_stream_write_w_header() it was
found that there is a bug in the way the data is sent, although a very rare
one which will only affect very large que

During refactoring of the function mysqlnd_stream_write_w_header() it was
found that there is a bug in the way the data is sent, although a very rare
one which will only affect very large queries which have length 16777214. The
communication will hang. A way to test it is to execute the following:
./php -r '$c=mysqli_connect("127.0.0.1","root","root","test");
$q="insert into test.tblob values(\"".str_repeat("a",256*256*256-1-34)."\")";
$c->query($q);'

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Remove unneeded dereferences
(oops, committed the trunk changes from a wrong directory, which splitted
this commit).

move MYSQLND_NET code to a separate file.
mysqlnd_wireprotocol is about the protocol not the transport
layer

Move code out of mysqlnd_conn::connect to mysqlnd_net::connect.
Thus mysqlnd_conn::connect() does less of what it should not do - think
about the transport level.

refactor: move code that belongs to MYSQLND_NET out of MYSQLND

- fix build, come on, it is not that hard to test before commit, is it?

Make MYSQLND_NET dynamically allocated structure with allocator
and deallocator. More member functions will come.

Remove the zval caching from mysqlnd. It was disabled versions ago
due to problems on windows, which were not debugged. Better have
code that is disabled not in the core.

- void is NaN, you can't do math ops on void. Declarations go first. Fix TS build

fix debug windows build as well as remove a compilation warning
(a header not included)

Compressed protocol support + extensibility for mysqlnd

Fixing problems when calling connect (again and again) on a valid connection handle. Most of the patch comes from Andrey.

Fix ZTS build

MFH, a fix not included by the fix committed by Ulf.
pemalloc and then efree - too bad!
Sorry for committing in two passes, my big tree is already patched
with compressed.

Fix (by Andrey) and test for bug #49442 . Don't use efree() for memory allocated with malloc()... If a connection gets created by mysqli_init(), mysqlnd makes it 'persistent'. 'Persistent' means that

Fix (by Andrey) and test for bug #49442 . Don't use efree() for memory allocated with malloc()... If a connection gets created by mysqli_init(), mysqlnd makes it 'persistent'. 'Persistent' means that mysqlnd uses malloc(). mysqlnd does use malloc() instead of ealloc() because it is unknown if the connection will become a true persistent connection in the sense of ext/mysqli. It is unknown if the user wants a persistent connection or not until the user calls mysqli_real_connect(). To avoid tricky conversions mysqlnd uses malloc(), which sets a private persistent flag in the mysqlnd structures. A precondition for the crash to happen was that the private persistent flag is set. The flag is also set when creating a real persistent connection (in the sense of ext/mysqli) and so the bug can happen with mysql_init()/mysqli_real_connect() and mysql_connect('p:<host>', ...). Therefore we test both cases. Note the (tricky?) difference between the implementation detail'mysqlnd private persistent flag = use malloc()' and persistent connections from a user perspective. Although mysqlnd will always set its private persistent flag and use malloc() for connections created with mysqli_init() it is still up to the user to decide in mysqli_real_connect() if the connection shall become a (true) persistent connection or not.

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Next attempt to fix http://bugs.php.net/bug.php?id=48745. Patch by Andrey.

Fix path

- fix build

Revert mysqlnd to RC3 state after issues with pconnects

MFH:
Hardwire function call instead of using callbacks. We don't actually need
callbacks, it was done for making 2 functions static, not to pollute the
global functions space but that had

MFH:
Hardwire function call instead of using callbacks. We don't actually need
callbacks, it was done for making 2 functions static, not to pollute the
global functions space but that had its price of 8 bytes overheat per
allocation, which is just too much. Also making the app member 32b instead
of 64b, which should save additional 4 byte, to the total of 12 byte per
allocation of a row buffer.

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