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Annotation of researchv9/sys/conf/src/config/mkheaders.c, revision 1.1

1.1     ! root        1: /*
        !             2:  *     mkheaders.c     1.6     81/04/08
        !             3:  * Make all the .h files for the optional entries
        !             4:  */
        !             5: 
        !             6: #include <stdio.h>
        !             7: #include <ctype.h>
        !             8: #include "config.h"
        !             9: 
        !            10: /*
        !            11:  * This macro reads a line of the form
        !            12:  *     #define STRING <number>
        !            13:  * and assigns STRING to wd and <number> to count
        !            14:  */
        !            15: #define rdln(f, wd, count) {\
        !            16:        register char *iwd;\
        !            17:        if ((wd = get_word(f)) != NULL && wd != WEOF)\
        !            18:            if ((wd = get_word(f)) != NULL && wd != WEOF) {\
        !            19:                iwd = ns(wd);\
        !            20:                if ((wd = get_word(f)) != NULL && wd != WEOF) {\
        !            21:                    count = atoi(wd);\
        !            22:                    wd = get_word(f);\
        !            23:                    wd = iwd;\
        !            24:                }\
        !            25:            }\
        !            26:        }
        !            27: 
        !            28: headers()
        !            29: {
        !            30:     register struct file_list *fl;
        !            31: 
        !            32:     for (fl = ftab; fl != NULL; fl = fl->f_next)
        !            33:        if (fl->f_needs != NULL)
        !            34:            do_count(fl->f_needs, fl->f_needs, TRUE);
        !            35: }
        !            36: 
        !            37: /*
        !            38:  * do_count:
        !            39:  *     Count all the devices of a certain type and recurse to count
        !            40:  *     whatever the device is connected to
        !            41:  */
        !            42: 
        !            43: do_count(dev, hname, search)
        !            44: register char *dev, *hname;
        !            45: bool search;
        !            46: {
        !            47:     register struct device *dp, *mp;
        !            48:     register int count;
        !            49: 
        !            50:     for (count = 0,dp = dtab; dp != NULL; dp = dp->d_next)
        !            51:        if (dp->d_unit != -1 && eq(dp->d_name, dev))
        !            52:        {
        !            53:            if (dp->d_count)
        !            54:                count += dp->d_count;
        !            55:            else
        !            56:                count++;
        !            57:            if (search)
        !            58:            {
        !            59:                mp = dp->d_conn;
        !            60:                if (mp != NULL && mp != TO_NEXUS && mp->d_conn != TO_NEXUS)
        !            61:                {
        !            62:                    do_count(mp->d_name, hname, FALSE);
        !            63:                    search = FALSE;
        !            64:                }
        !            65:            }
        !            66:        }
        !            67:     do_header(dev, hname, count);
        !            68: }
        !            69: 
        !            70: do_header(dev, hname, count)
        !            71: char *dev, *hname;
        !            72: int count;
        !            73: {
        !            74:     char *file, *name, *inw, *toheader(), *tomacro();
        !            75:     struct file_list *fl, *fl_head;
        !            76:     FILE *inf, *outf;
        !            77:     int inc, oldcount;
        !            78: 
        !            79:     file = toheader(hname);
        !            80:     name = tomacro(dev);
        !            81:     inf = fopen(file, "r");
        !            82:     oldcount = -1;
        !            83:     if (inf == NULL)
        !            84:     {
        !            85:        outf = fopen(file, "w");
        !            86:        if (outf == NULL) {
        !            87:            perror(file);
        !            88:            exit(1);
        !            89:        }
        !            90:        fprintf(outf, "#define %s %d\n", name, count);
        !            91:        fclose(outf);
        !            92:        return;
        !            93:     }
        !            94:     fl_head = NULL;
        !            95:     while(1)
        !            96:     {
        !            97:        rdln(inf, inw, inc);
        !            98:        if (inw == WEOF)
        !            99:            break;
        !           100:        if (eq(inw, name))
        !           101:        {
        !           102:            oldcount = inc;
        !           103:            inc = count;
        !           104:        }
        !           105:        fl = (struct file_list *) malloc(sizeof *fl);
        !           106:        fl->f_fn = inw;
        !           107:        fl->f_type = inc;
        !           108:        fl->f_next = fl_head;
        !           109:        fl_head = fl;
        !           110:     }
        !           111:     fclose(inf);
        !           112:     if (count == oldcount)
        !           113:     {
        !           114:        for (fl = fl_head; fl != NULL; fl = fl->f_next)
        !           115:            free(fl);
        !           116:        return;
        !           117:     }
        !           118:     if (oldcount == -1)
        !           119:     {
        !           120:        fl = (struct file_list *) malloc(sizeof *fl);
        !           121:        fl->f_fn = name;
        !           122:        fl->f_type = count;
        !           123:        fl->f_next = fl_head;
        !           124:        fl_head = fl;
        !           125:     }
        !           126:     outf = fopen(file, "w");
        !           127:     if (outf == NULL) {
        !           128:        perror(file);
        !           129:        exit(1);
        !           130:     }
        !           131:     for (fl = fl_head; fl != NULL; fl = fl->f_next)
        !           132:     {
        !           133:        fprintf(outf, "#define %s %d\n", fl->f_fn, count ? fl->f_type : 0);
        !           134:        free(fl);
        !           135:     }
        !           136:     fclose(outf);
        !           137: }
        !           138: 
        !           139: /*
        !           140:  * toheader:
        !           141:  *     Convert a dev name to a .h file nae
        !           142:  */
        !           143: 
        !           144: char *toheader(dev)
        !           145: char *dev;
        !           146: {
        !           147:     static char hbuf[80];
        !           148: 
        !           149:     strcpy(hbuf, LOCAL(dev));
        !           150:     strcat(hbuf, ".h");
        !           151:     return hbuf;
        !           152: }
        !           153: 
        !           154: /*
        !           155:  * tomacro:
        !           156:  *     Convert a dev name to a macro name
        !           157:  */
        !           158: 
        !           159: char *tomacro(dev)
        !           160: register char *dev;
        !           161: {
        !           162:     static char mbuf[20];
        !           163:     register char *cp;
        !           164: 
        !           165:     cp = mbuf;
        !           166:     *cp++ = 'N';
        !           167:     while(*dev)
        !           168:        *cp++ = toupper(*dev++);
        !           169:     *cp++ = '\0';
        !           170:     return mbuf;
        !           171: }

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