Mercurial > MadButterfly

annotate src/sprite.c @ 489:23c7667b3ec0 Android_Skia

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Fix a potential bug when destroy a rdman. When a rdman is dirty, free shapes and coords works specially. Objects are append to a free list. They are not real freed until rdman being clean. redraw_man_destroy() free shapes and coords with free functions of them. If rdman is dirty when destroy it, objects would be leaked. The changeset make rdman clean before free shapes and coords to make objects being freed correctly.
author Thinker K.F. Li <thinker@branda.to>
date Sun, 22 Nov 2009 20:41:27 +0800
parents 84ce2d4a8c3f
children 586e50f82c1f
rev   line source
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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include <string.h>
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4 #include "mb_graph_engine.h"
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5 #include <dlfcn.h>
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6 #include <sys/stat.h>
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7 #include "mb_types.h"
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8 #include "mb_shapes.h"
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9 #include "mb_tools.h"
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10 #include "mb_redraw_man.h"
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11 #include "mb_observer.h"
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12 #include "mb_prop.h"
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13
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14 #define ASSERT(x)
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15 #define OK 0
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16 #define ERR 1
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17
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18 static char *sprite_search_path = NULL;
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19
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20 static char *sprite_search_so(const char *name) {
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21 struct stat st;
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22 int fsz;
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23 char *fullname;
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24 int r;
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25
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26 if(sprite_search_path == NULL)
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27 sprite_search_path = strdup("/usr/share/madbutterffly");
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28
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29 fsz = strlen(sprite_search_path) + strlen(name) + 5;
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30 fullname = (char *)malloc(fsz);
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31
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32 snprintf(fullname, fsz, "%s/%s.so", sprite_search_path, name);
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33 r = stat(fullname, &st);
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34 if(r != 0) {
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35 free(fullname);
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36 return NULL;
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37 }
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38
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39 return fullname;
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40 }
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41
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42 void sprite_set_search_path(char *path) {
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43 int sz;
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44
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45 if (sprite_search_path)
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46 free(sprite_search_path);
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47
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48 sprite_search_path = strdup(path);
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49
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50 sz = strlen(sprite_search_path);
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51 if(sprite_search_path[sz - 1] == '/')
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52 sprite_search_path[sz - 1] = 0;
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53 }
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54
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55 mb_sprite_t *
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56 sprite_load(const char *name, redraw_man_t *rdman, coord_t *root) {
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57 char cnstr_name[256];
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58 char *so_path;
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59 const char *bname;
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60 void *handle;
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61 mb_sprite_t *(*cnstr)(redraw_man_t *, coord_t *);
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62 mb_sprite_t *obj;
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63 int r;
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64
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65 so_path = sprite_search_so(name);
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66 if(so_path == NULL)
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67 return NULL;
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68
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69 handle = dlopen(so_path, RTLD_LAZY);
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70 free(so_path);
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71 if (handle == NULL)
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72 return NULL;
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73
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74 bname = strrchr(name, '/');
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75 if(bname != NULL && strlen(bname) > 250)
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76 return NULL;
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77
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78 if(bname == NULL)
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79 bname = name;
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80 else
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81 bname++;
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82
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83 snprintf(cnstr_name, sizeof(cnstr_name), "%s_new", bname);
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84 cnstr = dlsym(handle, cnstr_name);
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85 if (cnstr == NULL)
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86 return NULL;
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87
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88 obj = cnstr(rdman, root);
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89
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90 return obj;
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91 }
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92
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93 /* vim: set ts=4 */