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* added xfree() which takes a const pointerMax Kellermann2008-08-291-0/+13
| | | | | | | | Unfortunately, the C standard postulates that the argument to free() must be non-const. This does not makes sense, and virtually prevents every pointer which must be freed at some time to be non-const. Use the deconst hack (sorry for that) to allow us to free constant pointers.
* export the function client_is_expired()Max Kellermann2008-08-294-12/+6
| | | | | | | Instead of passing the pointer to the "expired" flag to processListOfCommands(), this function should use the client API to check this flag. We can now remove the "global_expired" hack introduced recently.
* client: pass the client struct to processCommand()Max Kellermann2008-08-294-9/+34
| | | | | | | | Start exporting the client struct as an opaque struct. For now, pass it only to processCommand() and processListOfCommands(), and provide a function to extract the socket handle. Later, we will propagate the pointer to all command implementations, and of course to client_print() etc.
* client: reorder function declarationsMax Kellermann2008-08-291-3/+4
| | | | | Change the order of function declarations in client.h, to make it well arranged and readable.
* client: check "expired" after command executionMax Kellermann2008-08-291-7/+14
| | | | | | The old code tried to write a response to the client, without even checking if it was already closed. Now that we have added more assertions, these may fail... perform the "expired" check earlier.
* client: added global "expired" flagMax Kellermann2008-08-291-6/+7
| | | | | | | | | | Patch bdeb8e14 ("client: moved "expired" accesses into inline function") was created under the wrong assumption that processListOfCommands() could modify the expired flag, which is not the case. Although "expired" is a non-const pointer, processListOfCommands() just reads it, using it as the break condition in a "while" loop. I will address this issue with a better overall solution, but for now provide a pointer to a global "expired" flag.
* pass constant pointersMax Kellermann2008-08-2910-16/+17
| | | | And again, convert arguments to const.
* client: removed superfluous assertionMax Kellermann2008-08-291-1/+0
| | | | | | client_defer_output() was modified so that it can create the deferred_send list. With this patch, the assertion on "deferred_send!=NULL" has become invalid. Remove it.
* log.c: thread-safety for warning logEric Wong2008-08-281-4/+12
| | | | | | I'm really no fan of the warning log, it's too complex for how little it gets used; but fixing it is another problem.
* client: more assertionsMax Kellermann2008-08-281-0/+6
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* client: replace "expired" flag with fd==-1Max Kellermann2008-08-281-6/+6
| | | | Why waste 4 bytes for a flag which we can hide in another variable.
* client: moved "expired" accesses into inline functionMax Kellermann2008-08-281-13/+29
| | | | Hiding this flag allows us later to remove it easily.
* moved code to sockaddr_to_tmp_string()Max Kellermann2008-08-281-9/+17
| | | | | Unclutter the client_new() constructor by moving unrelated complex code into a separate function.
* client: no while loop in client_manager_io()Max Kellermann2008-08-281-32/+26
| | | | | | The last patch removed the "continue" directive, and now the while loop is without function. Remove it. Also make client_manager_io() return 0.
* client: select() errors are fatalMax Kellermann2008-08-281-30/+6
| | | | | | | Previously, when select() failed, we assumed that there was an invalid file descriptor in one of the client structs. Thus we tried select() one by one. This is bogus, because we should never have invalid file descriptors. Remove it, and make select() errors fatal.
* client: use client_defer_output() in client_write()Max Kellermann2008-08-281-7/+3
| | | | | Eliminate duplicated code, call client_defer_output() which we splitted from client_write_output() earlier.
* moved code to client_write()Max Kellermann2008-08-281-26/+28
| | | | | Move the second part of client_write_output() into a separate function.
* client: client_defer_output() can create the first defer bufferMax Kellermann2008-08-281-5/+5
| | | | | | client_defer_output() was designed to add new buffers to an existing deferred_send buffer. Tweak it and allow it to create a new buffer list.
* client: return early on error in client_defer_output()Max Kellermann2008-08-281-5/+7
| | | | | Exit the function when an error occurs, and move the rest of the following code one indent level left.
* client: moved code to client_defer_output()Max Kellermann2008-08-281-20/+27
| | | | | Split the large function client_write_output() into two parts; this is the first code moving patch.
* don't free client resources except in client_close()Max Kellermann2008-08-281-15/+0
| | | | | | All of the client's resources are freed in client_close(). It is enough to set the "expired" flag, no need to duplicate lots of destruction code again and again.
* client: allocate clients dynamicallyMax Kellermann2008-08-281-90/+76
| | | | | | Due to the large buffers in the client struct, the static client array eats several megabytes of RAM with a maximum of only 10 clients. Stop this waste and allocate each client struct from the heap.
* client: added function client_by_fd()Max Kellermann2008-08-281-13/+21
| | | | | The code becomes less complex and more readable when we move this linear search into a separate mini function.
* client: return early in client_new()Max Kellermann2008-08-281-30/+31
| | | | This saves one level of indent.
* client: renamed all public functionsMax Kellermann2008-08-286-19/+19
| | | | | | Functions which operate on the whole client list are prefixed with "client_manager_", and functions which handle just one client just get "client_".
* client: renamed internal functions and variablesMax Kellermann2008-08-281-297/+296
| | | | | Rename all static functions, variables and macros which have "interface" in their name to something nicer prefixed with "client_".
* client: renamed Interface to struct clientMax Kellermann2008-08-281-19/+19
| | | | | | | Second patch: rename the internal struct name. We will eventually export this type as an opaque forward-declared struct later, so we can pass a struct pointer instead of a file descriptor, which would save us an expensive linear lookup.
* renamed interface.c to client.cMax Kellermann2008-08-287-7/+7
| | | | | | | I don't believe "interface" is a good name for something like "connection by a client to MPD", let's call it "client". This is the first patch in the series which changes the name, beginning with the file name.
* imported list.h from the Linux kernel sourcesMax Kellermann2008-08-282-0/+485
| | | | | | | linux/list.h is a nice doubly linked list library - it is lightweight and powerful at the same time. It will be useful later, when we begin to allocate client structures dynamically. Import it, and strip out all the stuff which we are not going to use.
* const pointersMax Kellermann2008-08-286-16/+16
| | | | The usual bunch of pointer arguments which should be const.
* unsigned integers and size_tMax Kellermann2008-08-283-11/+11
| | | | | Use "unsigned int" whenever negative values are not meaningful. Use size_t whenever we are going to describe buffer sizes.
* include cleanupMax Kellermann2008-08-284-2/+3
| | | | Only include headers which are really needed.
* protect locate.h from double inclusionMax Kellermann2008-08-281-0/+5
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* moved player_command_finished() to player_thread.cMax Kellermann2008-08-263-10/+8
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* moved code to pc_init(), dc_init()Max Kellermann2008-08-268-24/+37
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* renamed player.c to player_control.cMax Kellermann2008-08-2613-272/+252
| | | | | Give player.c a better name, meaning that the code is used to control the player thread.
* no commandError() in playerSeek()Max Kellermann2008-08-263-9/+9
| | | | | | We should avoid having protocol specific code in player.c. Just return success or failure, and let the caller send the error code to the MPD client.
* don't initialize "i" if we overwrite it anywayMax Kellermann2008-08-261-1/+3
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* renamed decoderInit() to decoder_thread_start()Max Kellermann2008-08-263-3/+3
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* renamed decode.h to decoder_control.hMax Kellermann2008-08-267-6/+7
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* renamed decode.c to decoder_thread.cMax Kellermann2008-08-265-4/+30
| | | | | | It should be obvious in which thread or context a function is being executed at runtime. The code which was left in decode.c is for the decoder thread itself; give the file a better name.
* moved global variable "pc" to player.hMax Kellermann2008-08-2611-9/+32
| | | | | This is the last of the three variables. Now we don't need playerData.h anymore in most sources.
* moved global variable "ob" to outputBuffer.hMax Kellermann2008-08-267-6/+14
| | | | | | | This releases several include file dependencies. As a side effect, "CHUNK_SIZE" isn't defined by decoder_api.h anymore, so we have to define it directly in the plugins which need it. It just isn't worth it to add it to the decoder plugin API.
* moved enum decoder_command to decoder_api.hMax Kellermann2008-08-262-8/+9
| | | | | | The decoder plugins need this type, so export it in the public API. This allows is to remove "decode.h" from "decoder_api.h", uncluttering the API namespace some more.
* moved variable "dc" to decode.hMax Kellermann2008-08-268-22/+27
| | | | | Now that "dc" is available here, we don't have to pass it to decoder_is_idle() and decoder_is_starting() anymore.
* player_thread: removed decode(), renamed decodeParent()Max Kellermann2008-08-261-15/+4
| | | | | decode() is a trivial wrapper for decodeParent(). Merge both and rename them to do_play().
* hide DecoderControl accesses in inline functionsMax Kellermann2008-08-262-10/+27
| | | | | | Unfortunately, we have to pass the DecoderControl pointer to these inline functions, because the global variable "dc" may not be available here. This will be fixed later.
* check for decoder error before state!=STARTMax Kellermann2008-08-261-9/+8
| | | | | When dc->error!=NOERROR, we do not need to check state!=START. Simplify the checks by moving the error check to the top.
* don't reset dc->command in quitDecode()Max Kellermann2008-08-261-1/+0
| | | | | | The decoder thread is responsible for resetting dc->command after a command was executed. As a consequence, we can assume that dc->command is already NONE after decoder_stop().
* added decoder_control.cMax Kellermann2008-08-264-50/+110
| | | | | | The source "decoder_control.c" provides an API for controlling the decoder. This replaces various direct accesses to the DecoderControl struct.
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