+/*
+ * ypp-commodities main program: argument parsing etc.
+ */
+/*
+ * This is part of ypp-sc-tools, a set of third-party tools for assisting
+ * players of Yohoho Puzzle Pirates.
+ *
+ * Copyright (C) 2009 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Yohoho and Puzzle Pirates are probably trademarks of Three Rings and
+ * are used without permission. This program is not endorsed or
+ * sponsored by Three Rings.
+ */
+
+#include "convert.h"
-#include "ocr.h"
+void debug_flush(void) {
+ sysassert(!ferror(debug));
+ sysassert(!fflush(debug));
+}
-typedef struct {
- unsigned long rgb; /* on screen */
- char c; /* canonical */
-} CanonColourInfo;
+const char *get_vardir(void) { return "."; }
+const char *get_libdir(void) { return "."; }
-static int height, width;
-static char *image;
-void debug_flush(void) {
- eassert(!fflush(debug));
- eassert(!ferror(debug));
-}
+enum mode {
+ mf_findwindow= 00001,
+ mf_screenshot= 00010,
+ mf_readscreenshot= 00020,
+ mf_analyse= 00100,
+ mfm_special= 07000,
+
+ mode_findwindow= 00001,
+ mode_screenshot= 00011,
+ mode_analyse= 00120,
+ mode_showcharset= 01000,
-typedef struct {
- int x, y;
-} Point;
-
-typedef struct { /* both inclusive */
- Point tl;
- Point br;
-} Rect;
-
-static inline char get(int x, int y) { return image[y * width + x]; }
-static inline char get_p(Point p) { return get(p.x,p.y); }
-
-
-#define START_MAIN {200,200}
-#define MIN_COLUMNS 6
-#define INTERESTING_COLUMNS 6
-#define TEXT_COLUMNS 2
-#define MAX_COLUMNS 7
-
-static Rect mainr = { START_MAIN,START_MAIN };
-static int commbasey, comminty;
-static int colrightx[INTERESTING_COLUMNS];
-static int text_h;
-static OcrReader *rd;
-
-static const CanonColourInfo canoncolourinfos[]= {
- { 0x475A5E, '*' }, /* edge */
- { 0x2C5F7A, '*' }, /* edge just under box heading shadow */
- { 0x7D9094, '+' }, /* interbox */
-
- { 0xBDC5BF, ' ' }, /* background - pale Sugar cane, etc. */
- { 0xADB5AF, ' ' }, /* background - dark */
- { 0xC7E1C3, ' ' }, /* background - pale Swill, etc. */
- { 0xB5CFB1, ' ' }, /* background - dark */
- { 0xD6CEB0, ' ' }, /* background - pale Madder, etc. */
- { 0xC8C0A2, ' ' }, /* background - dark */
- { 0xE0E1D3, ' ' }, /* background - pale Lorandite, etc. */
- { 0xD0D1C3, ' ' }, /* background - dark */
- { 0xE5E6C1, ' ' }, /* background - pale Cloth */
- { 0xD7D8B3, ' ' }, /* background - dark */
- { 0xEDDED9, ' ' }, /* background - pale Dye */
- { 0xDACBC6, ' ' }, /* background - dark */
- { 0xD3DEDF, ' ' }, /* background - pale Paint */
- { 0xC5D0D1, ' ' }, /* background - dark */
- { 0xDCD1CF, ' ' }, /* background - pale Enamel */
- { 0xCEC3C1, ' ' }, /* background - dark */
- { 0xF3F6F5, ' ' }, /* background - pale fruit */
- { 0xE2E7E5, ' ' }, /* background - dark */
-
- { 0x000000, 'o' }, /* foreground */
- { 0xD4B356, ' ' }, /* background (cursor) */
- { 0xFFFFFF, 'o' }, /* foreground (cursor) */
-
- { 0x5B93BF, '_' }, /* selector dropdown background */
- { 0xD7C94F, 'X' }, /* selector dropdown foreground */
- { 0,0 }
+ mode_all= 00111,
};
-static void require_rectangle(int tlx, int tly, int brx, int bry,
- const char *ok) {
- int x,y;
- for (x=tlx; x<=brx; x++)
- for (y=tly; y<=bry; y++) {
- int c= get(x,y);
- assert(strchr(ok,c));
- }
-}
-static void require_rectangle_r(Rect rr, const char *ok) {
- require_rectangle(rr.tl.x,rr.tl.y, rr.br.x,rr.br.y, ok);
+enum outmodekind {
+ omk_unset, omk_upload, omk_str, omk_raw, omk_none
+};
+static enum outmodekind o_outmode_kind;
+static const char *o_outmode_str= 0;
+
+static enum mode o_mode= mode_all;
+static char *o_screenshot_fn;
+static const char *o_serv_pctb, *o_serv_dict_fetch, *o_serv_dict_submit;
+
+const char *o_resolver= "./dictionary-manager";
+FILE *screenshot_file;
+const char *o_ocean, *o_pirate;
+int o_quiet;
+
+enum flags o_flags=
+ ff_charset_allowedit |
+ ff_dict_fetch|ff_dict_submit|ff_dict_pirate;
+
+static void vbadusage(const char *fmt, va_list) FMT(1,0) NORET;
+static void vbadusage(const char *fmt, va_list al) {
+ fputs("bad usage: ",stderr);
+ vfprintf(stderr,fmt,al);
+ fputc('\n',stderr);
+ exit(12);
}
+DEFINE_VWRAPPERF(static, badusage, NORET);
-static void debug_rect(const char *what, int whati, Rect rr) {
-#ifdef DEBUG_RECTANGLES
- int y,r,w;
- fprintf(debug, "%s %d: %d,%d..%d,%d:\n", what, whati,
- rr.tl.x,rr.tl.y, rr.br.x,rr.br.y);
- w= rr.br.x - rr.tl.x + 1;
- for (y=rr.tl.y; y<=rr.br.y; y++) {
- fprintf(debug, "%4d%*s|", y, rr.tl.x,"");
- r= fwrite(image + y*width + rr.tl.x, 1, w, debug);
- eassert(r==w);
- fputc('|',debug);
- fputc('\n',debug);
- }
-#endif
- debug_flush();
+static void open_screenshot_file(const char *mode) {
+ screenshot_file= fopen(o_screenshot_fn, mode);
+ if (!screenshot_file)
+ fatal("could not open screenshots file `%s': %s",
+ o_screenshot_fn, strerror(errno));
}
-#define WALK_UNTIL(point,coord,increm,last,edge) \
- for (;;) { \
- if ((point).coord == (last)+(increm)) break; \
- if (get_p((point)) == (edge)) { (point).coord -= (increm); break; } \
- (point).coord += (increm); \
- }
+static void run_analysis(void) {
+ FILE *tf;
-#define WALK_UNTIL_MUST(point,coord,increm,last,edge) \
- do { \
- WALK_UNTIL(point,coord,increm,last,edge); \
- eassert((point).coord != (last)+(increm)); \
- } while(0)
-
-static void find_structure(void) {
- Rect whole = { {0,0}, {width-1,height-1} };
-
- WALK_UNTIL_MUST(mainr.tl, x,-1, whole.tl.x, '*');
- WALK_UNTIL_MUST(mainr.tl, y,-1, whole.tl.y, '*');
- WALK_UNTIL_MUST(mainr.br, x,+1, whole.br.x, '*');
- WALK_UNTIL_MUST(mainr.br, y,+1, whole.br.y, '*');
-
- require_rectangle(mainr.tl.x-1, mainr.tl.y, mainr.tl.x-1, mainr.br.y, "*");
- require_rectangle(mainr.br.x+1, mainr.tl.y, mainr.br.x+1, mainr.br.y, "*");
- require_rectangle(mainr.tl.x, mainr.tl.y-1, mainr.br.x, mainr.tl.y-1, "*");
- require_rectangle(mainr.tl.x, mainr.br.y+1, mainr.br.x, mainr.br.y+1, "*");
-
-#define CHECK_STRIP_BORDER(tlbr,xy,increm) \
- do { \
- Point csb_p; \
- Rect csb_r; \
- csb_p= mainr.tl; \
- csb_p.xy= mainr.tlbr.xy; \
- if (get_p(csb_p)=='+') { \
- csb_r= mainr; \
- csb_r.tl.xy= csb_p.xy; \
- csb_r.br.xy= csb_p.xy; \
- require_rectangle_r(csb_r, "+"); \
- mainr.tlbr.xy += increm; \
- } \
- } while(0)
-
- debug_rect("mainr",0, mainr);
-
- CHECK_STRIP_BORDER(tl,x,+1);
- CHECK_STRIP_BORDER(tl,y,+1);
- CHECK_STRIP_BORDER(br,x,-1);
- CHECK_STRIP_BORDER(br,y,-1);
-
- debug_rect("mainr",1, mainr);
-
- Point up = START_MAIN;
- WALK_UNTIL_MUST(up, y,-1, mainr.tl.y, '+');
-
- Point down = START_MAIN;
- down.y++;
- WALK_UNTIL_MUST(down, y,+1, mainr.br.y, '+');
-
-#ifdef DEBUG_RECTANGLES
- int xscaleunit, y,x;
- for (y=0, xscaleunit=1; y<4; y++, xscaleunit*=10) {
- fprintf(debug," ");
- for (x=0; x<=width; x++) {
- if (x % xscaleunit) fputc(' ',debug);
- else fprintf(debug,"%d",(x / xscaleunit)%10);
- }
- fputc('\n',debug);
+ sysassert( tf= tmpfile() );
+ progress("running recognition...");
+ analyse(tf);
+
+ if (o_flags & ff_upload) {
+ if (npages<=1)
+ fatal("Recognition successful, but refusing to upload partial data\n"
+ " (--single-page specified). Specify an output mode?");
}
-#endif
- commbasey= up.y;
- comminty= down.y - up.y + 2;
+ sysassert( fseek(tf,0,SEEK_SET) == 0);
- Point across= { mainr.tl.x, commbasey };
- int colno=0;
- for (;;) {
- eassert(get_p(across) != '+');
- WALK_UNTIL(across, x,+1, mainr.br.x, '+');
- eassert(colno < MAX_COLUMNS);
- int colrx= across.x;
- if (colrx > mainr.br.x) colrx= mainr.br.x;
- if (colno < INTERESTING_COLUMNS)
- colrightx[colno]= colrx;
-
- colno++;
-
- if (across.x >= mainr.br.x-1)
- break;
-
- across.x++;
- require_rectangle(across.x,mainr.tl.y, across.x,mainr.br.y, "+");
- across.x++;
+ progress_log("processing results (--%s)...", o_outmode_str);
+ pid_t processor;
+ sysassert( (processor= fork()) != -1 );
+
+ if (!processor) {
+ sysassert( dup2(fileno(tf),0) ==0 );
+ EXECLP_HELPER("commod-results-processor", o_outmode_str, (char*)0);
}
- eassert(colno >= MIN_COLUMNS);
-
- text_h = comminty - 1;
-}
-
-static void find_commodity(int offset, Rect *rr) {
- /* rr->tl.x==-1 if offset out of range */
- rr->tl.y= commbasey - offset*comminty;
- rr->br.y= rr->tl.y + comminty-2;
- if (rr->tl.y < mainr.tl.y || rr->br.y > mainr.br.y) { rr->tl.x=-1; return; }
- if (rr->tl.y > mainr.tl.y)
- require_rectangle(rr->tl.x,rr->tl.y-1, rr->br.x,rr->tl.y-1, "+");
- if (rr->br.y < mainr.tl.y)
- require_rectangle(rr->tl.x,rr->br.y+1, rr->br.x,rr->br.y+1, "+");
+
+ waitpid_check_exitstatus(processor, "output processor/uploader");
+ fclose(tf);
+ progress_log("all complete.");
+}
+
+void fetch_with_rsync(const char *stem) {
+ pid_t fetcher;
+
+ sysassert( (fetcher= fork()) != -1 );
+ if (!fetcher) {
+ const char *rsync= getenv("YPPSC_PCTB_RSYNC");
+ if (!rsync) rsync= "rsync";
- rr->tl.x= mainr.tl.x;
- rr->br.x= mainr.br.x;
+ const char *src= getenv("YPPSC_PCTB_DICT_UPDATE");
+ char *remote= masprintf("%s/master-%s.txt", src, stem);
+ char *local= masprintf("_master-%s.txt", stem);
+ if (DEBUGP(rsync))
+ fprintf(stderr,"executing rsync to fetch %s to %s\n",remote,local);
+ execlp(rsync, "rsync",
+ DEBUGP(rsync) ? "-zvLt" : "-zLt",
+ "--",remote,local,(char*)0);
+ sysassert(!"exec rsync failed");
+ }
+
+ waitpid_check_exitstatus(fetcher, "rsync");
}
-static void find_table_entry(Rect commod, int colno, Rect *cellr) {
- cellr->tl.y= commod.tl.y;
- cellr->br.y= commod.br.y;
- cellr->tl.x= !colno ? commod.tl.x : colrightx[colno-1]+2;
- cellr->br.x= colrightx[colno];
- debug_rect("cell", colno, *cellr);
- require_rectangle_r(*cellr, " o");
+static void set_server(const char *envname, const char *defprotocol,
+ const char *defvalue, const char *defvalue_test,
+ const char *userspecified,
+ int enable) {
+ const char *value;
+
+ if (!enable) { value= "0"; goto ok; }
+
+ if (userspecified)
+ value= userspecified;
+ else if ((value= getenv(envname)))
+ ;
+ else if (o_flags & ff_testservers)
+ value= defvalue_test;
+ else
+ value= defvalue;
+
+ if (value[0]=='/' || (value[0]=='.' && value[1]=='/'))
+ /* absolute or relative pathname - or anyway, something with no hostname */
+ goto ok;
+
+ const char *colon= strchr(value, ':');
+ const char *slash= strchr(value, '/');
+
+ if (colon && (!slash || colon < slash))
+ /* colon before the first slash, if any */
+ /* rsync :: protocol specification - anyway, adding scheme:// won't help */
+ goto ok;
+
+ int vallen= strlen(value);
+
+ value= masprintf("%s%s%s", defprotocol, value,
+ vallen && value[vallen-1]=='/' ? "" : "/");
+
+ ok:
+ sysassert(! setenv(envname,value,1) );
}
-static void load_image_and_canonify(void) {
- struct pam inpam;
- unsigned char rgb[3];
- int x,y,r;
- const CanonColourInfo *cci;
-
- pnm_readpaminit(stdin, &inpam, sizeof(inpam));
- height= inpam.height;
- width= inpam.width;
- eassert(inpam.maxval == 255);
- eassert(inpam.bytes_per_sample == 1);
-
- image= malloc(width*height);
- eassert(image);
- memset(image,'?',width*height);
-
- for (y=0; y<height; y++) {
- for (x=0; x<width; x++) {
- r= fread(&rgb,1,3,stdin); eassert(r==3);
- unsigned long rgb_l=
- ((unsigned long)rgb[0]<<16) |
- ((unsigned long)rgb[1]<<8) |
- (rgb[2]);
- for (cci=canoncolourinfos; cci->c; cci++)
- if (cci->rgb == rgb_l) {
- image[y*width + x]= cci->c;
- break;
- }
- }
-#ifdef DEBUG_RECTANGLES
- fprintf(debug, "%4d ",y);
- r= fwrite(image + y*width, 1,width, debug); eassert(r==width);
- fputc('\n',debug);
-#endif
+int main(int argc, char **argv) {
+ const char *arg;
+
+ sysassert( setlocale(LC_MESSAGES,"") );
+ sysassert( setlocale(LC_CTYPE,"en_GB.UTF-8") ||
+ setlocale(LC_CTYPE,"en.UTF-8") );
+
+#define ARGVAL ((*++argv) ? *argv : \
+ (badusage("missing value for option %s",arg),(char*)0))
+
+#define IS(s) (!strcmp(arg,(s)))
+
+ while ((arg=*++argv)) {
+ if (IS("--find-window-only")) o_mode= mode_findwindow;
+ else if (IS("--screenshot-only")) o_mode= mode_screenshot;
+ else if (IS("--show-charset")) o_mode= mode_showcharset;
+ else if (IS("--analyse-only") ||
+ IS("--same")) o_mode= mode_analyse;
+ else if (IS("--everything")) o_mode= mode_all;
+ else if (IS("--find-island")) o_flags |= ffs_printisland;
+ else if (IS("--single-page")) o_flags |= ff_singlepage;
+ else if (IS("--quiet")) o_quiet= 1;
+ else if (IS("--edit-charset")) o_flags |= ff_charset_edit;
+ else if (IS("--no-edit-charset")) o_flags &= ~(ffm_charset);
+ else if (IS("--test-servers")) o_flags |= ff_testservers;
+ else if (IS("--dict-local-only")) o_flags &= ~ffs_dict;
+ else if (IS("--dict-read-only")) o_flags &= (~ffs_dict | ff_dict_fetch);
+ else if (IS("--dict-anon")) o_flags &= ~ff_dict_pirate;
+ else if (IS("--dict-submit")) o_flags |= ff_dict_fetch|ff_dict_submit;
+ else if (IS("--raw-tsv")) o_outmode_kind= omk_raw;
+ else if (IS("--upload")) o_outmode_kind= omk_upload;
+ else if (IS("--arbitrage") ||
+ IS("--tsv") ||
+ IS("--best-prices")) o_outmode_kind=omk_str,
+ o_outmode_str=arg+2;
+
+ else if (IS("--screenshot-file")) o_screenshot_fn= ARGVAL;
+ else if (IS("--pctb-server")) o_serv_pctb= ARGVAL;
+ else if (IS("--dict-submit-server")) o_serv_dict_submit= ARGVAL;
+ else if (IS("--dict-update-server")) o_serv_dict_fetch= ARGVAL;
+ else if (IS("--ocean")) o_ocean= ARGVAL;
+ else if (IS("--pirate")) o_pirate= ARGVAL;
+#define DF(f) \
+ else if (IS("-D" #f)) \
+ debug_flags |= dbg_##f;
+ DEBUG_FLAG_LIST
+#undef DF
+ else if (IS("--window-id")) {
+ char *ep;
+ unsigned long windowid= strtoul(ARGVAL,&ep,0);
+ if (*ep) badusage("invalid window id");
+ set_yppclient_window(windowid);
+ } else
+ badusage("unknown option `%s'",arg);
}
- debug_flush();
-}
-static void ocr_rectangle(Rect r, const OcrCellType ct) {
- OcrResultGlyph *results, *res;
-
- int w= r.br.x - r.tl.x + 1;
- Pixcol cols[w+1];
- int x,y;
- for (x=0; x<w; x++) {
- Pixcol cx, rv;
- for (y=0, cx=0, rv=1; y<text_h; y++, rv<<=1) {
- switch (get(x+r.tl.x, y+r.tl.y)) {
- case ' ': break;
- case 'o': cx |= rv; break;
- default: eassert(!"wrong pixel");
+ /* Consequential changes to options */
+
+ if (o_mode & mf_analyse) {
+ if (!o_outmode_kind) {
+ if (o_flags & ff_printisland) {
+ o_outmode_kind= omk_none;
+ o_flags |= ff_singlepage;
+ } else {
+ o_outmode_kind= omk_upload;
}
}
- cols[x]= cx;
+
+ if (o_outmode_kind==omk_upload) {
+ o_flags |= ffs_upload;
+ o_outmode_str= "upload";
+ }
}
- cols[w]= 0;
-
- results= ocr(rd,ct,w,cols);
- printf("YES! \"");
- for (res=results; res->s; res++)
- printf("%s",res->s);
- printf("\"\n");
- eassert(!ferror(stdout));
- eassert(!fflush(stdout));
-}
-int main(void) {
- Rect thisr, entryr;
- int tryrect, colno;
-
- load_image_and_canonify();
- find_structure();
- rd= ocr_init(text_h);
-
- for (tryrect= +height; tryrect >= -height; tryrect--) {
- find_commodity(tryrect, &thisr);
- if (thisr.tl.x < 0)
- continue;
- debug_rect("commod",tryrect, thisr);
-
- for (colno=0; colno<MIN_COLUMNS; colno++) {
- find_table_entry(thisr,colno,&entryr);
- ocr_rectangle(entryr,
- colno<TEXT_COLUMNS
- ? &ocr_celltype_text
- : &ocr_celltype_number);
+ /* Defaults */
+
+ set_server("YPPSC_PCTB_PCTB",
+ "http://", "pctb.ilk.org" /*pctb.crabdance.com*/,
+ "pctb.ilk.org",
+ o_serv_pctb, o_flags & (ff_needisland|ff_upload));
+
+ set_server("YPPSC_PCTB_DICT_UPDATE",
+ "rsync://", "rsync.pctb.chiark.greenend.org.uk/pctb",
+ "rsync.pctb.chiark.greenend.org.uk/pctb/test",
+ o_serv_dict_fetch, o_flags & ff_dict_fetch);
+
+ set_server("YPPSC_PCTB_DICT_SUBMIT",
+ "http://", "dictup.pctb.chiark.greenend.org.uk",
+ "dictup.pctb.chiark.greenend.org.uk/test",
+ o_serv_dict_submit, o_flags & ff_dict_submit);
+
+ if (!o_screenshot_fn)
+ o_screenshot_fn= masprintf("%s/_pages.ppm",get_vardir());
+
+ /* Actually do the work */
+
+ canon_colour_prepare();
+
+ if (o_mode & mf_findwindow) {
+ screenshot_startup();
+ find_yppclient_window();
+ }
+ if (!ocean) ocean= o_ocean;
+ if (!pirate) pirate= o_pirate;
+
+ if (o_flags & ff_needisland)
+ if (!ocean)
+ badusage("need --ocean option when not using actual YPP client window"
+ " (consider supplying --pirate too)");
+ if (ocean)
+ sysassert(! setenv("YPPSC_OCEAN",ocean,1) );
+ if (pirate && (o_flags & ff_dict_pirate))
+ sysassert(! setenv("YPPSC_PIRATE",pirate,1) );
+
+ switch (o_mode & mfm_special) {
+ case 0: break;
+ case mode_showcharset: ocr_showcharsets(); exit(0);
+ default: abort();
+ }
+
+ if (o_mode & mf_screenshot) {
+ open_screenshot_file("w");
+ if (o_flags & ff_singlepage) take_one_screenshot();
+ else take_screenshots();
+ progress_log("OK for you to move the mouse now.");
+ }
+ if (o_mode & mf_readscreenshot) {
+ if ((o_flags & ff_upload) && !(o_flags & ff_testservers))
+ badusage("must not reuse screenshots for upload to live PCTB database");
+ open_screenshot_file("r");
+ if (o_flags & ff_singlepage) read_one_screenshot();
+ else read_screenshots();
+ }
+ if (o_mode & mf_analyse) {
+ if (o_flags & ff_needisland) {
+ find_islandname(page_images[0]->rgb);
+ if (o_flags & ff_printisland)
+ printf("%s, %s\n", archipelago, island);
+ sysassert(! setenv("YPPSC_ISLAND",island,1) );
+ }
+ switch (o_outmode_kind) {
+ case omk_upload: case omk_str: run_analysis(); break;
+ case omk_raw: analyse(stdout); break;
+ case omk_none: break;
+ default: abort();
}
}
+ progress_log("Finished.");
return 0;
}
-const char *get_vardir(void) { return "."; }
+
+
+
+DEFINE_VWRAPPERF(, progress, )
+DEFINE_VWRAPPERF(, progress_log, )
+DEFINE_VWRAPPERF(, progress_spinner, )
+DEFINE_VWRAPPERF(, warning, )
+DEFINE_VWRAPPERF(, fatal, NORET)
+
+static int last_progress_len;
+
+static void vprogress_core(int spinner, const char *fmt, va_list al) {
+ int r;
+
+ if (o_quiet) return;
+ if (!isatty(2)) return;
+
+ if (last_progress_len)
+ putc('\r',stderr);
+
+ r= vfprintf(stderr,fmt,al);
+
+ if (spinner) {
+ putc(spinner,stderr);
+ r++;
+ }
+
+ if (r < last_progress_len) {
+ fprintf(stderr,"%*s", last_progress_len - r, "");
+ if (!r) putc('\r', stderr);
+ else while (last_progress_len-- > r) putc('\b',stderr);
+ }
+ last_progress_len= r;
+
+ if (ferror(stderr) || fflush(stderr)) _exit(16);
+}
+
+void vprogress(const char *fmt, va_list al) { vprogress_core(0,fmt,al); }
+void vprogress_spinner(const char *fmt, va_list al) {
+ static const char spinchars[]="/-\\";
+ static int spinner;
+
+ vprogress_core(spinchars[spinner],fmt,al);
+ spinner++;
+ spinner %= (sizeof(spinchars)-1);
+}
+
+void vprogress_log(const char *fmt, va_list al) {
+ if (o_quiet) return;
+
+ progress("");
+ vfprintf(stderr,fmt,al);
+ putc('\n',stderr);
+ fflush(stderr);
+}
+
+void vwarning(const char *fmt, va_list al) {
+ progress("");
+ fputs("Warning: ",stderr);
+ vfprintf(stderr,fmt,al);
+ fputs("\n",stderr);
+ fflush(stderr);
+}
+
+void vfatal(const char *fmt, va_list al) {
+ progress("");
+ fputs("\n\nFatal error: ",stderr);
+ vfprintf(stderr,fmt,al);
+ fflush(stderr);
+ fputs("\n\n",stderr);
+ _exit(4);
+}
+
+void sysassert_fail(const char *file, int line, const char *what) {
+ int e= errno;
+ progress("");
+ fprintf(stderr,
+ "\nfatal operational error:\n"
+ " unsuccessful execution of: %s\n"
+ " %s:%d: %s\n\n",
+ what, file,line, strerror(e));
+ _exit(16);
+}
+
+void waitpid_check_exitstatus(pid_t pid, const char *what) {
+ pid_t got;
+ int st;
+ for (;;) {
+ got= waitpid(pid, &st, 0);
+ if (pid==-1) { sysassert(errno==EINTR); continue; }
+ break;
+ }
+ sysassert( got==pid );
+
+ if (WIFEXITED(st)) {
+ if (WEXITSTATUS(st))
+ fatal("%s failed with nonzero exit status %d",
+ what, WEXITSTATUS(st));
+ } else if (WIFSIGNALED(st)) {
+ fatal("%s died due to signal %s%s", what,
+ strsignal(WTERMSIG(st)), WCOREDUMP(st)?" (core dumped)":"");
+ } else {
+ fatal("%s gave strange wait status %d", what, st);
+ }
+}
+
+char *masprintf(const char *fmt, ...) {
+ char *r;
+ va_list al;
+ va_start(al,fmt);
+ sysassert( vasprintf(&r,fmt,al) >= 0);
+ sysassert(r);
+ va_end(al);
+ return r;
+}