Mercurial > noffle

annotate src/dynamicstring.h @ 165:8ea6b5ddc5a5 noffle

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[svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release the lock and close the databases if (a) another process signals us SIGUSR1 indicating it wants the lock, or (b) it is explicitly requested by a call to new function Lock_syncDatabases(). When waiting for the lock, SIGUSR1 the holding process every second. This is all an attempt to minimise the number of times we need to close and open the database. When (ha!) the database is replaced by something that can handle multiple simultaneous writers (with appropriate locking) this won't be necessary.
author bears
date Thu, 25 Jan 2001 13:38:31 +0000
parents e612b263934f
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 dynamicstring.h
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3
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4 String utilities
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5
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6 $Id: dynamicstring.h 65 2000-05-12 16:52:41Z enz $
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7 */
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8
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9 #ifndef DYNAMICSTRING_H
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10 #define DYNAMICSTRING_H
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11
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12 #if HAVE_CONFIG_H
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13 #include <config.h>
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14 #endif
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16 #include <sys/types.h>
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17
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18 /* A dynamically growing string */
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19 struct DynStr;
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20 typedef struct DynStr DynStr;
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22 /* Create new DynStr with given capacity */
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23 DynStr *
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24 new_DynStr( int reserve );
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26 /* Delete DynStr */
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27 void
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28 del_DynStr( DynStr *self );
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29
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30 /* Return DynStr's length */
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31 int
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32 DynStr_len( const DynStr *self );
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34 /* Return DynStr's content ptr */
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35 const char *
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36 DynStr_str( const DynStr *self );
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38 /* append C-string to DynStr */
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39 void
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40 DynStr_app( DynStr *self, const char *s );
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42 /* append a DynStr to DynStr */
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43 void
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44 DynStr_appDynStr( DynStr *self, const DynStr *s );
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46 /* Append C-string + newline to DynStr */
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47 void
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48 DynStr_appLn( DynStr *self, const char *s );
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50 /* Append a maximum of n characters from C-string s to DynStr self */
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51 void
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52 DynStr_appN( DynStr *self, const char *s, int n );
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54 /* Truncate content of DynString to zero length */
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55 void
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56 DynStr_clear( DynStr *self );
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58 #endif