4coder/4ed_system.h

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/*
* Mr. 4th Dimention - Allen Webster
*
* 21.01.2014
*
* System functions for project codename "4ed"
*
*/
// TOP
struct Plat_Handle{
u32 d[4];
};
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inline int
handle_equal(Plat_Handle a, Plat_Handle b){
int result = (memcmp(&a, &b, sizeof(a)) == 0);
return(result);
}
struct Unique_Hash{
u32 d[4];
};
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inline Unique_Hash
uhash_zero(){
Unique_Hash r = {0};
return(r);
}
inline int
uhash_equal(Unique_Hash a, Unique_Hash b){
int result = (memcmp(&a, &b, sizeof(a)) == 0);
return(result);
}
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#define Sys_File_Time_Stamp_Sig(name) u64 name(char *filename)
typedef Sys_File_Time_Stamp_Sig(System_File_Time_Stamp);
// TODO(allen): make directory a char* to signal that it must be null terminated
#define Sys_Set_File_List_Sig(name) void name(File_List *file_list, String directory)
typedef Sys_Set_File_List_Sig(System_Set_File_List);
#define Sys_File_Unique_Hash_Sig(name) Unique_Hash name(String filename, b32 *success)
typedef Sys_File_Unique_Hash_Sig(System_File_Unique_Hash);
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#define Sys_File_Track_Sig(name) void name(String filename)
typedef Sys_File_Track_Sig(System_File_Track);
#define Sys_File_Untrack_Sig(name) void name(String filename)
typedef Sys_File_Untrack_Sig(System_File_Untrack);
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#define Sys_Post_Clipboard_Sig(name) void name(String str)
typedef Sys_Post_Clipboard_Sig(System_Post_Clipboard);
#define Sys_Time_Sig(name) u64 name()
typedef Sys_Time_Sig(System_Time);
// cli
struct CLI_Handles{
Plat_Handle proc;
Plat_Handle out_read;
Plat_Handle out_write;
u32 scratch_space[4];
i32 exit;
};
#define Sys_CLI_Call_Sig(name) b32 name(char *path, char *script_name, CLI_Handles *cli_out)
typedef Sys_CLI_Call_Sig(System_CLI_Call);
#define Sys_CLI_Begin_Update_Sig(name) void name(CLI_Handles *cli)
typedef Sys_CLI_Begin_Update_Sig(System_CLI_Begin_Update);
#define Sys_CLI_Update_Step_Sig(name) b32 name(CLI_Handles *cli, char *dest, u32 max, u32 *amount)
typedef Sys_CLI_Update_Step_Sig(System_CLI_Update_Step);
#define Sys_CLI_End_Update_Sig(name) b32 name(CLI_Handles *cli)
typedef Sys_CLI_End_Update_Sig(System_CLI_End_Update);
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// coroutine
#define Coroutine_Function_Sig(name) void name(struct Coroutine *coroutine)
typedef Coroutine_Function_Sig(Coroutine_Function);
struct Coroutine{
Plat_Handle plat_handle;
Coroutine_Function *func;
void *yield_handle;
void *in;
void *out;
};
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#define Sys_Create_Coroutine_Sig(name) Coroutine *name(Coroutine_Function *func)
typedef Sys_Create_Coroutine_Sig(System_Create_Coroutine);
#define Sys_Launch_Coroutine_Sig(name) Coroutine *name(Coroutine *coroutine, void *in, void *out)
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typedef Sys_Launch_Coroutine_Sig(System_Launch_Coroutine);
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#define Sys_Resume_Coroutine_Sig(name) Coroutine *name(Coroutine *coroutine, void *in, void *out)
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typedef Sys_Resume_Coroutine_Sig(System_Resume_Coroutine);
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#define Sys_Yield_Coroutine_Sig(name) void name(Coroutine *coroutine)
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typedef Sys_Yield_Coroutine_Sig(System_Yield_Coroutine);
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// thread
struct Thread_Context;
enum Lock_ID{
FRAME_LOCK,
INPUT_LOCK,
FONT_LOCK,
RENDER_LOCK,
CANCEL_LOCK0,
CANCEL_LOCK1,
CANCEL_LOCK2,
CANCEL_LOCK3,
CANCEL_LOCK4,
CANCEL_LOCK5,
CANCEL_LOCK6,
CANCEL_LOCK7,
LOCK_COUNT
};
enum Thread_Group_ID{
BACKGROUND_THREADS,
THREAD_GROUP_COUNT
};
struct Thread_Memory{
void *data;
i32 size;
i32 id;
};
inline Thread_Memory
thread_memory_zero(){
Thread_Memory memory={0};
return(memory);
}
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struct Thread_Exchange;
struct System_Functions;
#define Job_Callback_Sig(name) void name( \
System_Functions *system, Thread_Context *thread, Thread_Memory *memory, \
Thread_Exchange *exchange, void *data[2])
typedef Job_Callback_Sig(Job_Callback);
struct Job_Data{
Job_Callback *callback;
void *data[2];
i32 memory_request;
};
struct Full_Job_Data{
Job_Data job;
u32 job_memory_index;
u32 running_thread;
b32 finished;
u32 id;
};
struct Work_Queue{
Full_Job_Data jobs[256];
Plat_Handle semaphore;
volatile u32 write_position;
volatile u32 read_position;
};
#define THREAD_NOT_ASSIGNED 0xFFFFFFFF
#define JOB_ID_WRAP (ArrayCount(queue->jobs) * 4)
#define QUEUE_WRAP (ArrayCount(queue->jobs))
struct Thread_Exchange{
Work_Queue queues[THREAD_GROUP_COUNT];
volatile u32 force_redraw;
};
#define Sys_Post_Job_Sig(name) u32 name(Thread_Group_ID group_id, Job_Data job)
typedef Sys_Post_Job_Sig(System_Post_Job);
#define Sys_Cancel_Job_Sig(name) void name(Thread_Group_ID group_id, u32 job_id)
typedef Sys_Cancel_Job_Sig(System_Cancel_Job);
#define Sys_Grow_Thread_Memory_Sig(name) void name(Thread_Memory *memory)
typedef Sys_Grow_Thread_Memory_Sig(System_Grow_Thread_Memory);
#define Sys_Acquire_Lock_Sig(name) void name(i32 id)
typedef Sys_Acquire_Lock_Sig(System_Acquire_Lock);
#define Sys_Release_Lock_Sig(name) void name(i32 id)
typedef Sys_Release_Lock_Sig(System_Release_Lock);
// debug
#define INTERNAL_Sys_Sentinel_Sig(name) Bubble* name()
typedef INTERNAL_Sys_Sentinel_Sig(INTERNAL_System_Sentinel);
#define INTERNAL_Sys_Get_Thread_States_Sig(name) void name(Thread_Group_ID id, b8 *running, i32 *pending)
typedef INTERNAL_Sys_Get_Thread_States_Sig(INTERNAL_System_Get_Thread_States);
#define INTERNAL_Sys_Debug_Message_Sig(name) void name(char *message)
typedef INTERNAL_Sys_Debug_Message_Sig(INTERNAL_System_Debug_Message);
struct System_Functions{
// files: 4
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System_File_Time_Stamp *file_time_stamp;
System_Set_File_List *set_file_list;
System_File_Unique_Hash *file_unique_hash;
System_File_Track *file_track;
System_File_Untrack *file_untrack;
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// file system navigation (4coder_custom.h): 3
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File_Exists_Function *file_exists;
Directory_CD_Function *directory_cd;
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Get_4ed_Path_Function *get_4ed_path;
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// clipboard: 1
System_Post_Clipboard *post_clipboard;
// time: 1
System_Time *time;
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// coroutine: 4
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System_Create_Coroutine *create_coroutine;
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System_Launch_Coroutine *launch_coroutine;
System_Resume_Coroutine *resume_coroutine;
System_Yield_Coroutine *yield_coroutine;
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// cli: 4
System_CLI_Call *cli_call;
System_CLI_Begin_Update *cli_begin_update;
System_CLI_Update_Step *cli_update_step;
System_CLI_End_Update *cli_end_update;
// threads: 5
System_Post_Job *post_job;
System_Cancel_Job *cancel_job;
System_Grow_Thread_Memory *grow_thread_memory;
System_Acquire_Lock *acquire_lock;
System_Release_Lock *release_lock;
// debug: 3
INTERNAL_System_Sentinel *internal_sentinel;
INTERNAL_System_Get_Thread_States *internal_get_thread_states;
INTERNAL_System_Debug_Message *internal_debug_message;
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// non-function details
char slash;
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};
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#define FileNameMax (1 << 9)
struct File_Slot{
File_Slot *next, *prev;
byte *data;
i32 size, max;
char *filename;
i32 filename_len;
u32 flags;
};
inline File_Slot
file_slot_zero(){
File_Slot slot={0};
return(slot);
}
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enum File_Exchange_Flag{
FEx_Request = 0x1,
FEx_Ready = 0x2,
FEx_Not_Exist = 0x4,
FEx_Save = 0x8,
FEx_Save_Complete = 0x10,
FEx_Save_Failed = 0x20
};
struct File_Exchange{
File_Slot available, active, free_list;
File_Slot *files;
i32 num_active, max;
};
struct Write_Event{
Write_Event *next, *prev;
String filename;
u64 time_stamp;
};
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struct Exchange{
Thread_Exchange thread;
File_Exchange file;
Write_Event write_event_sentinel;
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};
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// BOTTOM