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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2377 | konopa | 1 | /* Functions for printing on console. */ |
| 2 | |||
| 3 | |||
| 4 | /* Methods: |
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| 5 | * init_printing: connects to SERVICE_CONSOLE and initializes used data structures |
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| 6 | * print_console: prints char* on console |
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| 7 | * print_console_int: prints int argument with specified conversion inside input string |
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| 8 | */ |
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| 9 | |||
| 10 | |||
| 11 | #include <string.h> |
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| 12 | #include <ipc/ipc.h> |
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| 13 | #include <ipc/services.h> |
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| 14 | #include <async.h> |
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| 15 | #include "fs.h" |
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| 16 | #include "../console/console.h" |
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| 17 | |||
| 18 | #define TOTAL_CONVERSIONS 5 |
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| 19 | #define BUFF_SIZE 10 |
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| 20 | |||
| 21 | |||
| 22 | /* Table of printing conversions for: d, i, u, c, %. */ |
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| 23 | char conversions[TOTAL_CONVERSIONS]; |
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| 24 | char format_string[3] = "%"; |
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| 25 | |||
| 26 | static int validate_string(char conv); |
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| 27 | |||
| 28 | int init_printing() |
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| 29 | { |
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| 30 | |||
| 31 | /* Attempt to connect to SERVICE_CONSOLE fail. */ |
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| 32 | if (!connect_to_con(&con_phone, CON_CONN_ATTEMPTS)) |
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| 33 | return FALSE; |
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| 34 | |||
| 35 | conversions[0] = 'd'; |
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| 36 | conversions[1] = 'i'; |
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| 37 | conversions[2] = 'u'; |
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| 38 | conversions[3] = 'c'; |
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| 39 | conversions[4] = '%'; |
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| 40 | |||
| 41 | } |
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| 42 | |||
| 43 | int validate_string(char conv) |
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| 44 | { |
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| 45 | |||
| 46 | int i; |
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| 47 | |||
| 48 | /* Check if the conversion character matches conversions table. */ |
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| 49 | for (i = 0; i < TOTAL_CONVERSIONS; i++){ |
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| 50 | if (conv == conversions[i]) { |
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| 51 | return TRUE; |
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| 52 | } |
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| 53 | } |
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| 54 | |||
| 55 | return FALSE; |
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| 56 | } |
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| 57 | |||
| 58 | int print_console(char *str) |
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| 59 | { |
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| 60 | |||
| 61 | int i, len; |
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| 62 | char c; |
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| 63 | |||
| 64 | /* Must be connected to the CONSOLE_SERVICE. */ |
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| 65 | if (con_phone < 0) |
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| 66 | return FALSE; |
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| 67 | |||
| 68 | len = strlen(str); |
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| 69 | if (len == 0) |
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| 70 | return TRUE; |
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| 71 | |||
| 72 | for (i = 0; i < len; i++) { |
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| 73 | c = *str++; |
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| 74 | async_req_2(con_phone, CONSOLE_PUTCHAR, c, 0, NULL, NULL); /* Do the work. */ |
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| 75 | } |
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| 76 | |||
| 77 | return TRUE; |
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| 78 | } |
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| 79 | |||
| 80 | int print_console_int(char *str, int arg) |
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| 81 | { |
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| 82 | |||
| 83 | int i, retval, len, front_side, offset; |
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| 84 | char conversion; |
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| 85 | char buffer[BUFF_SIZE]; |
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| 86 | char *front, *back; |
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| 87 | |||
| 88 | len = strlen(str); |
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| 89 | |||
| 90 | if (len == 0) |
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| 91 | return TRUE; |
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| 92 | |||
| 93 | front = malloc((len+1) * sizeof(char)); |
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| 94 | back = malloc((len+1) * sizeof(char)); |
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| 95 | |||
| 96 | front_side = TRUE; |
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| 97 | |||
| 98 | /* Copy front side of source string. */ |
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| 99 | for (i = 0; i < len; i++) { |
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| 100 | if (str[i] == '%') { |
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| 101 | front_side = FALSE; |
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| 102 | break; |
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| 103 | } |
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| 104 | front[i] = str[i]; |
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| 105 | } |
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| 106 | |||
| 107 | /* Character '%' was not found. Print it in a normal way, without int argument. */ |
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| 108 | if (front_side) { |
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| 109 | return (print_console(str)); |
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| 110 | } |
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| 111 | |||
| 112 | /* Character '%' was the last in the input string - error. */ |
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| 113 | if (i == (len-1)) { |
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| 114 | return FALSE; |
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| 115 | } |
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| 116 | |||
| 117 | front[i] = '\0'; |
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| 118 | conversion = str[++i]; |
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| 119 | retval = validate_string(conversion); |
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| 120 | |||
| 121 | if (!retval) { |
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| 122 | return FALSE; |
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| 123 | } |
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| 124 | |||
| 125 | offset = ++i; |
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| 126 | |||
| 127 | /* Copy back side of source string. */ |
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| 128 | for (;i < len; i++) { |
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| 129 | back[i-offset] = str[i]; |
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| 130 | } |
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| 131 | |||
| 132 | back[i] = '\0'; |
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| 133 | |||
| 134 | /* Two characters '%' in source string. */ |
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| 135 | if (conversion == '%') { |
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| 136 | print_console(front); |
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| 137 | print_console(back); |
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| 138 | return TRUE; |
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| 139 | } |
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| 140 | |||
| 141 | /* Other 'normal' case. */ |
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| 142 | print_console(front); |
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| 143 | format_string[1] = conversion; |
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| 144 | sprintf(buffer, format_string, arg); |
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| 145 | print_console(buffer); |
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| 146 | print_console(back); |
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| 147 | |||
| 148 | return TRUE; |
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| 149 | } |