/* * $Header$ * $Locker$ Copyright (c) 2010-2012, Rogue Wave Software, Inc. Permission is hereby granted, free of charge, to any person obtaining a copy of the tv_data_display.h and tv_data_display.c files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * Update log * * Feb 1 2012 NYP: Updated Copyright * Apr 18 2011 SJT: TVT-13122, comment cleanup. * Sep 27 2010 ANB: lots of changes as part of totalview/12314. * Reworked to reduce the dependencies on outside * entities, both at compile and also at runtime. * Adjusted the naming scheme. * Jan 28 2010 SJT: Bug 12100, bump base size to 16K and recognize if it is * resized further. * Sep 24 2009 SJT: Remove pre/post callback to reduce function call overhead. * Jul 1 2009 SJT: Created. * */ #ifdef __cplusplus extern "C" { #endif #include "tv_data_display.h" #include #include /* for size_t */ #define DATA_FORMAT_BUFFER_SIZE 16384 #define TV_FORMAT_INACTIVE 0 #define TV_FORMAT_FIRST_CALL 1 #define TV_FORMAT_APPEND_CALL 2 volatile int TV_ttf_data_format_control = TV_FORMAT_INACTIVE; int TV_ttf_data_display_api_version = TV_TTF_DATA_DISPLAY_API_VERSION; /* TV_ttf_data_format_buffer should not be static for icc 11, and others */ char TV_ttf_data_format_buffer[DATA_FORMAT_BUFFER_SIZE]; static char *TV_ttf_data_buffer_ptr = TV_ttf_data_format_buffer; static const char digits [] = "0123456789abcdefghijklmnopqrstuvwxyz"; static const size_t base_bound = sizeof ( digits ); /* ************************************************************************ */ int TV_ttf_is_format_result_ok ( TV_ttf_format_result fr ) { int ret_val; switch ( fr ) { case TV_ttf_format_ok: case TV_ttf_format_ok_elide: ret_val = 1; break; default: ret_val = 0; break; } return ret_val; } /* TV_ttf_is_format_result_ok */ /* ************************************************************************ */ static void * my_zeroit ( void *s, size_t n ) { char *cp = (char *) s; /* not the most efficient of solutions. What we should do is */ /* do the assugnments in units of int or long. The problem */ /* with that is ensuring that the alignments of the assignments */ /* are correct. The difficulty with that is doing arithmetic */ /* on pointers in a portable manner. */ while ( n > 0 ) { *cp++ = 0; n--; } return s; } /* my_zeroit */ static char * my_strpbrk ( const char *str, const char *accept ) { char *ret_val = NULL; char *s, *t; for ( s = (char *) str; (*s) && (! ret_val); s++ ) { for ( t = (char *) accept; (*t) && (! ret_val); t++ ) { if ( *s == *t ) ret_val = s; } } return ret_val; } /* my_strpbrk */ static int marshal_string ( char *buffer, size_t len, const char *s, char **nbuffer, size_t *nlen ) { int ret_val = 0; char *cursor = buffer; while ( *s ) { ret_val++; if ( len > 1 ) { *cursor++ = *s++; len--; } } if ( len > 0 ) *cursor = '\0'; if ( nbuffer ) *nbuffer = cursor; if ( nlen ) *nlen = len; return ret_val; } /* marshal_string */ static int marshal_unsigned_body ( char *buffer, size_t len, size_t val, int base, char **nbuffer, size_t *nlen ) { int ret_val = 0; size_t q, r; char digit [ 2 ]; char *my_buffer = buffer; size_t my_len = len; if ( val < base ) { r = val; } else { q = val / base; r = val - (q * base); ret_val += marshal_unsigned_body ( buffer, len, q, base, &my_buffer, &my_len ); } digit [ 0 ] = digits [ r ]; digit [ 1 ] = '\0'; ret_val += marshal_string ( my_buffer, my_len, digit, nbuffer, nlen ); return ret_val; } /* marshal_unsigned_body */ static int marshal_unsigned ( char *buffer, size_t len, size_t val, int base, char **nbuffer, size_t *nlen ) { int ret_val = 0; if ( 0 == base ) base = 10; if ( base < base_bound ) ret_val = marshal_unsigned_body ( buffer, len, val, base, nbuffer, nlen ); else ret_val = -1; return ret_val; } /* marshal_unsigned */ static int marshal_hex ( char *buffer, size_t len, size_t hex_val, char **nbuffer, size_t *nlen ) { int ret_val = 0; char *my_buffer; size_t my_len; ret_val += marshal_string ( buffer, len, "0x", &my_buffer, &my_len ); ret_val += marshal_unsigned ( my_buffer, my_len, hex_val, 16, nbuffer, nlen ); return ret_val; } /* marshal_hex */ static int marshal_row ( char *buffer, size_t len, const char *field_name, const char *type_name, const void *value, char **nbuffer, size_t *nlen ) { int ret_val = 0; char *my_buffer; size_t my_len; ret_val += marshal_string ( buffer, len, field_name, &my_buffer, &my_len ); ret_val += marshal_string ( my_buffer, my_len, "\t", &my_buffer, &my_len ); ret_val += marshal_string ( my_buffer, my_len, type_name, &my_buffer, &my_len ); ret_val += marshal_string ( my_buffer, my_len, "\t", &my_buffer, &my_len ); ret_val += marshal_hex ( my_buffer, my_len, (size_t) value, &my_buffer, &my_len ); ret_val += marshal_string ( my_buffer, my_len, "\n", nbuffer, nlen ); return ret_val; } /* marshal_row */ int TV_ttf_add_row(const char *field_name, const char *type_name, const void *value) { size_t remaining; int out; /* printf ( "TV_ttf_add_row: on entry TV_ttf_data_format_control == %d\n", TV_ttf_data_format_control ); */ /* Called at the wrong time */ if (TV_ttf_data_format_control == TV_FORMAT_INACTIVE) return TV_ttf_ec_not_active; if (my_strpbrk(field_name, "\n\t") != NULL) return TV_ttf_ec_invalid_characters; if (my_strpbrk(type_name, "\n\t") != NULL) return TV_ttf_ec_invalid_characters; if (TV_ttf_data_format_control == TV_FORMAT_FIRST_CALL) { /* Zero out the buffer to avoid confusion, and set the write point to the top of the buffer. */ my_zeroit(TV_ttf_data_format_buffer, sizeof (TV_ttf_data_format_buffer)); TV_ttf_data_buffer_ptr = TV_ttf_data_format_buffer; TV_ttf_data_format_control = TV_FORMAT_APPEND_CALL; } remaining = TV_ttf_data_buffer_ptr + DATA_FORMAT_BUFFER_SIZE - TV_ttf_data_format_buffer; /* out = snprintf(TV_ttf_data_buffer_ptr, remaining, "%s\t%s\t%p\n", field_name, type_name, value); */ out = marshal_row ( TV_ttf_data_buffer_ptr, remaining, field_name, type_name, value, 0, 0 ); if (out < 1) return TV_ttf_ec_buffer_exhausted; TV_ttf_data_buffer_ptr += out; return 0; } /* TV_ttf_add_row */ void TV_ttf_pre_display_callback(void) { TV_ttf_data_format_control = TV_FORMAT_FIRST_CALL; } void TV_ttf_post_display_callback(void) { TV_ttf_data_format_control = TV_FORMAT_INACTIVE; } #ifdef __cplusplus } #endif