4coder/4ed_cli.cpp

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/*
* Mr. 4th Dimention - Allen Webster
*
* 17.07.2017
*
* CLI handling code.
*
*/
// TOP
internal void
child_process_container_init(Child_Process_Container *container, Models *models){
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container->arena = make_arena_app_links(&models->app_links);
dll_init_sentinel(&container->child_process_active_list);
dll_init_sentinel(&container->child_process_free_list);
container->child_process_id_counter = 0;
block_zero_struct(&container->id_to_ptr_table);
}
internal void
child_process_container_release(Child_Process_Container *container, Models *models){
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linalloc_clear(&container->arena);
heap_free(&models->mem.heap, container->id_to_ptr_table.mem);
block_zero_struct(container);
}
internal Child_Process_And_ID
child_process_alloc_new(Models *models, Child_Process_Container *container){
Child_Process_And_ID result = {};
Child_Process *new_process = 0;
if (container->child_process_free_list.next != &container->child_process_free_list){
Node *new_node = container->child_process_free_list.next;
dll_remove(new_node);
new_process = CastFromMember(Child_Process, node, new_node);
}
else{
new_process = push_array(&container->arena, Child_Process, 1);
}
u32 new_id = ++container->child_process_id_counter;
block_zero_struct(new_process);
dll_insert_back(&container->child_process_active_list, &new_process->node);
new_process->id = new_id;
insert_u32_Ptr_table(&models->mem.heap, &container->id_to_ptr_table, new_id, new_process);
container->active_child_process_count += 1;
result.process = new_process;
result.id = new_id;
return(result);
}
internal Child_Process*
child_process_from_id(Child_Process_Container *container, Child_Process_ID id){
Child_Process *process = 0;
lookup_u32_Ptr_table(&container->id_to_ptr_table, &id, (void**)&process);
return(process);
}
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internal b32
child_process_free(Child_Process_Container *container, Child_Process_ID id){
b32 result = false;
Child_Process *process = child_process_from_id(container, id);
if (process != 0){
erase_u32_Ptr_table(&container->id_to_ptr_table, &id);
dll_remove(&process->node);
dll_insert(&container->child_process_free_list, &process->node);
container->active_child_process_count -= 1;
result = true;
}
return(result);
}
internal b32
child_process_set_return_code(Models *models, Child_Process_Container *container, Child_Process_ID id, i64 val){
void *val_as_ptr = IntAsPtr(val);
insert_u32_Ptr_table(&models->mem.heap, &container->id_to_return_code_table, id, val_as_ptr);
return(true);
}
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internal b32
child_process_lookup_return_code(Child_Process_Container *container, Child_Process_ID id, i64 *out){
b32 result = false;
void *val_as_ptr = 0;
if (lookup_u32_Ptr_table(&container->id_to_return_code_table, &id, &val_as_ptr)){
*out = (u64)PtrAsInt(val_as_ptr);
result = true;
}
return(result);
}
////////////////////////////////
internal b32
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child_process_call(Models *models, System_Functions *system, String_Const_u8 path, String_Const_u8 command, Child_Process_ID *id_out){
b32 result = false;
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Scratch_Block scratch(&models->app_links);
String_Const_u8 path_n = string_copy(scratch, path);
String_Const_u8 command_n = string_copy(scratch, command);
CLI_Handles cli_handles = {};
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if (system->cli_call((char*)path_n.str, (char*)command_n.str, &cli_handles)){
Child_Process_And_ID new_process = child_process_alloc_new(models, &models->child_processes);
*id_out = new_process.id;
new_process.process->cli = cli_handles;
result = true;
}
return(result);
}
internal b32
child_process_set_target_buffer(Models *models, Child_Process *child_process, Editing_File *file, Child_Process_Set_Target_Flags flags){
b32 result = false;
b32 fail_if_process_has_buffer = HasFlag(flags, ChildProcessSet_FailIfProcessAlreadyAttachedToABuffer);
b32 fail_if_buffer_has_process = HasFlag(flags, ChildProcessSet_FailIfBufferAlreadyAttachedToAProcess);
b32 process_has_buffer = (child_process->out_file != 0);
b32 buffer_has_process = (file->state.attached_child_process != 0);
b32 fail = ((process_has_buffer && fail_if_process_has_buffer) ||
(buffer_has_process && fail_if_buffer_has_process));
if (!fail){
if (process_has_buffer){
child_process->out_file->state.attached_child_process = 0;
}
if (buffer_has_process){
Child_Process *attached_child_process = child_process_from_id(&models->child_processes, file->state.attached_child_process);
if (attached_child_process != 0){
attached_child_process->out_file = 0;
}
}
child_process->out_file = file;
file->state.attached_child_process = child_process->id;
result = true;
}
return(result);
}
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internal Process_State
child_process_get_state(Child_Process_Container *child_processes, Child_Process_ID child_process_id){
Child_Process *child_process = child_process_from_id(child_processes, child_process_id);
Process_State result = {};
if (child_processes != 0){
result.valid = true;
result.is_updating = true;
}
else if (child_process_lookup_return_code(child_processes, child_process_id, &result.return_code)){
result.valid = true;
}
return(result);
}
// BOTTOM