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Dependents: Interference_Simple StrCommandHandler_Demo
StrCommandHandler.cpp@2:a4873d38a32c, 2019-11-14 (annotated)
- Committer:
- aktk
- Date:
- Thu Nov 14 00:40:03 2019 +0000
- Revision:
- 2:a4873d38a32c
- Parent:
- 0:024213917a9f
- Child:
- 3:049a5f083f32
modified the return type of exe() and callbacks to (void *)
Who changed what in which revision?
| User | Revision | Line number | New contents of line | 
|---|---|---|---|
| aktk | 0:024213917a9f | 1 | #include "StrCommandHandler.h" | 
| aktk | 0:024213917a9f | 2 | |
| aktk | 0:024213917a9f | 3 | StrCommandHandler::StrCommandHandler ( | 
| aktk | 0:024213917a9f | 4 | int const arg_num_ofcommands | 
| aktk | 0:024213917a9f | 5 | ): | 
| aktk | 0:024213917a9f | 6 | m_num_ofcommands(arg_num_ofcommands) | 
| aktk | 0:024213917a9f | 7 | { | 
| aktk | 0:024213917a9f | 8 | m_command_name = new char[m_num_ofcommands][16]; | 
| aktk | 2:a4873d38a32c | 9 | m_function = new (void * (* [m_num_ofcommands])(void)); | 
| aktk | 0:024213917a9f | 10 | } | 
| aktk | 0:024213917a9f | 11 | |
| aktk | 2:a4873d38a32c | 12 | void StrCommandHandler::map( | 
| aktk | 0:024213917a9f | 13 | const char * const arg_command, | 
| aktk | 2:a4873d38a32c | 14 | void * (*arg_pfunc)(void) | 
| aktk | 0:024213917a9f | 15 | ) | 
| aktk | 0:024213917a9f | 16 | { | 
| aktk | 0:024213917a9f | 17 | static int itr_push = 0; | 
| aktk | 0:024213917a9f | 18 | |
| aktk | 0:024213917a9f | 19 | |
| aktk | 0:024213917a9f | 20 | // Reallocation | 
| aktk | 0:024213917a9f | 21 | if (itr_push == m_num_ofcommands) { | 
| aktk | 0:024213917a9f | 22 | m_num_ofcommands += 5; | 
| aktk | 0:024213917a9f | 23 | char (*tmp_cm)[16] = new char[m_num_ofcommands][16]; | 
| aktk | 2:a4873d38a32c | 24 | void * (**tmp_fu)(void)= new (void * (* [m_num_ofcommands])(void)); | 
| aktk | 0:024213917a9f | 25 | |
| aktk | 0:024213917a9f | 26 | memcpy(tmp_cm, m_command_name, sizeof(char) * (m_num_ofcommands - 5) * 16); | 
| aktk | 2:a4873d38a32c | 27 | memcpy(tmp_fu, m_function, sizeof(void * (*)()) * (m_num_ofcommands - 5)); | 
| aktk | 0:024213917a9f | 28 | |
| aktk | 0:024213917a9f | 29 | delete[] m_command_name; | 
| aktk | 0:024213917a9f | 30 | delete[] m_function; | 
| aktk | 0:024213917a9f | 31 | |
| aktk | 0:024213917a9f | 32 | m_command_name = tmp_cm; | 
| aktk | 0:024213917a9f | 33 | m_function = tmp_fu; | 
| aktk | 0:024213917a9f | 34 | } | 
| aktk | 0:024213917a9f | 35 | |
| aktk | 0:024213917a9f | 36 | // Register the command name | 
| aktk | 0:024213917a9f | 37 | for (int i = 0; i < 16; i++) { | 
| aktk | 0:024213917a9f | 38 | m_command_name[itr_push][i] = arg_command[i]; | 
| aktk | 0:024213917a9f | 39 | if (arg_command[i] == '\0') break; | 
| aktk | 0:024213917a9f | 40 | } | 
| aktk | 0:024213917a9f | 41 | m_command_name[itr_push][15] = '\0'; | 
| aktk | 0:024213917a9f | 42 | |
| aktk | 0:024213917a9f | 43 | // Register the pointer to function | 
| aktk | 0:024213917a9f | 44 | m_function[itr_push] = arg_pfunc; | 
| aktk | 0:024213917a9f | 45 | |
| aktk | 0:024213917a9f | 46 | itr_push++; | 
| aktk | 0:024213917a9f | 47 | } | 
| aktk | 0:024213917a9f | 48 | |
| aktk | 0:024213917a9f | 49 | |
| aktk | 2:a4873d38a32c | 50 | void * StrCommandHandler::exe( | 
| aktk | 0:024213917a9f | 51 | const char* const arg_command | 
| aktk | 0:024213917a9f | 52 | ) | 
| aktk | 0:024213917a9f | 53 | { | 
| aktk | 0:024213917a9f | 54 | int key = 0; | 
| aktk | 0:024213917a9f | 55 | |
| aktk | 0:024213917a9f | 56 | // Exception: NULL pointer | 
| aktk | 2:a4873d38a32c | 57 | if ( arg_command == NULL) return &(m_rescode = 0xFFFFFFFF); | 
| aktk | 0:024213917a9f | 58 | |
| aktk | 0:024213917a9f | 59 | // Exception: Null character | 
| aktk | 2:a4873d38a32c | 60 | if ( arg_command[0] == '\0') return &(m_rescode = 0xFFFFFFFE); | 
| aktk | 0:024213917a9f | 61 | |
| aktk | 0:024213917a9f | 62 | // Exception: Over length of Command's name | 
| aktk | 0:024213917a9f | 63 | for ( int i = 1; i < 16; i++ ) { | 
| aktk | 0:024213917a9f | 64 | if (arg_command[i] == '\0') break; | 
| aktk | 2:a4873d38a32c | 65 | if (i == 15) return &(m_rescode = 0xFFFFFFFD); | 
| aktk | 0:024213917a9f | 66 | } | 
| aktk | 0:024213917a9f | 67 | |
| aktk | 0:024213917a9f | 68 | // Search the command list | 
| aktk | 0:024213917a9f | 69 | while ( | 
| aktk | 0:024213917a9f | 70 | key < m_num_ofcommands | 
| aktk | 0:024213917a9f | 71 | && strcmp(m_command_name[key], arg_command) != 0 | 
| aktk | 0:024213917a9f | 72 | ) { | 
| aktk | 0:024213917a9f | 73 | key++; | 
| aktk | 0:024213917a9f | 74 | } | 
| aktk | 0:024213917a9f | 75 | |
| aktk | 0:024213917a9f | 76 | // Exception: Not registered Command | 
| aktk | 2:a4873d38a32c | 77 | if ( key == m_num_ofcommands ) return &(m_rescode = 0xFFFFFFFC); | 
| aktk | 0:024213917a9f | 78 | |
| aktk | 0:024213917a9f | 79 | return (*m_function[key])();; | 
| aktk | 0:024213917a9f | 80 | } | 
| aktk | 0:024213917a9f | 81 | |
| aktk | 0:024213917a9f | 82 | void StrCommandHandler::list() | 
| aktk | 0:024213917a9f | 83 | { | 
| aktk | 0:024213917a9f | 84 | puts("\n\n---------------"); | 
| aktk | 0:024213917a9f | 85 | puts("---------------\n"); | 
| aktk | 0:024213917a9f | 86 | puts("list of command\n"); | 
| aktk | 0:024213917a9f | 87 | for(int i = 0; i < m_num_ofcommands; i++) { | 
| aktk | 0:024213917a9f | 88 | if(m_function[i] != NULL) { | 
| aktk | 0:024213917a9f | 89 | printf("%02d: %16s", i, m_command_name[i]); | 
| aktk | 0:024213917a9f | 90 | //printf(" / result: %d", (*m_function[i])()); | 
| aktk | 0:024213917a9f | 91 | puts("\n"); | 
| aktk | 0:024213917a9f | 92 | } | 
| aktk | 0:024213917a9f | 93 | } | 
| aktk | 0:024213917a9f | 94 | puts("---------------\n"); | 
| aktk | 0:024213917a9f | 95 | } |