upstream/mercurial-mirror Files · mercurial/bitmanipulation.h

changegroup: allow to force delta to be against p1...

changegroup: allow to force delta to be against p1 This new developer option is useful to general more "generic" bundle. Without this option, a bundle generated from the repository use deltas similar to the one stored in the specific repository it was generated from. This makes performance testing a bit tricky. Using deltas similar to the final result means all delta stored in the bundle can be applied to the target repository without any further processing (except for the rare case of a full snapshot). The application of such bundles (almost) never exercises the (slower) path of searching for a new valid delta. This result in unrealistic and too favorable timing and profile. Instead, we introduce an option to make sure all revisions are stored as a delta against p1. It might not be the best generation option, but it guarantees that the content will be "generic", not favoring a specific target.

Augie Fackler - - Load All Authors

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             bitmanipulation.h
        
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        Maciej Fijalkowski
    
internals: move the bitmanipulation routines into its own file...

              r29444
            
      #ifndef _HG_BITMANIPULATION_H_

      #define _HG_BITMANIPULATION_H_

        Martin von Zweigbergk
    
bitmanipulation: add missing include of string.h...

              r32646
            
      #include <string.h>

        Maciej Fijalkowski
    
internals: move the bitmanipulation routines into its own file...

              r29444
            
      #include "compat.h"

      static inline uint32_t getbe32(const char *c)

      {

      	const unsigned char *d = (const unsigned char *)c;

        Augie Fackler
    
bitmanipulation: fix undefined behavior in bit shift in getbe32...

              r38322
            
      	return ((((uint32_t)d[0]) << 24) | (((uint32_t)d[1]) << 16) |

      	        (((uint32_t)d[2]) << 8) | (d[3]));

        Maciej Fijalkowski
    
internals: move the bitmanipulation routines into its own file...

              r29444
            
      }

      static inline int16_t getbeint16(const char *c)

      {

      	const unsigned char *d = (const unsigned char *)c;

        Augie Fackler
    
bitmanipulation: reformat with clang-format...

              r34698
            
      	return ((d[0] << 8) | (d[1]));

        Maciej Fijalkowski
    
internals: move the bitmanipulation routines into its own file...

              r29444
            
      }

      static inline uint16_t getbeuint16(const char *c)

      {

      	const unsigned char *d = (const unsigned char *)c;

        Augie Fackler
    
bitmanipulation: reformat with clang-format...

              r34698
            
      	return ((d[0] << 8) | (d[1]));

        Maciej Fijalkowski
    
internals: move the bitmanipulation routines into its own file...

              r29444
            
      }

      static inline void putbe32(uint32_t x, char *c)

      {

      	c[0] = (x >> 24) & 0xff;

      	c[1] = (x >> 16) & 0xff;

      	c[2] = (x >> 8) & 0xff;

        Augie Fackler
    
bitmanipulation: reformat with clang-format...

              r34698
            
      	c[3] = (x)&0xff;

        Maciej Fijalkowski
    
internals: move the bitmanipulation routines into its own file...

              r29444
            
      }

      static inline double getbefloat64(const char *c)

      {

      	const unsigned char *d = (const unsigned char *)c;

      	double ret;

      	int i;

      	uint64_t t = 0;

      	for (i = 0; i < 8; i++) {

        Augie Fackler
    
bitmanipulation: reformat with clang-format...

              r34698
            
      		t = (t << 8) + d[i];

        Maciej Fijalkowski
    
internals: move the bitmanipulation routines into its own file...

              r29444
            
      	}

      	memcpy(&ret, &t, sizeof(t));

      	return ret;

      }

      #endif

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Maciej Fijalkowski internals: move the bitmanipulation routines into its own file...	r29444	#ifndef _HG_BITMANIPULATION_H_
		#define _HG_BITMANIPULATION_H_

Martin von Zweigbergk bitmanipulation: add missing include of string.h...	r32646	#include <string.h>

Maciej Fijalkowski internals: move the bitmanipulation routines into its own file...	r29444	#include "compat.h"

		static inline uint32_t getbe32(const char *c)
		{
		const unsigned char d = (const unsigned char )c;

Augie Fackler bitmanipulation: fix undefined behavior in bit shift in getbe32...	r38322	return ((((uint32_t)d[0]) << 24) \| (((uint32_t)d[1]) << 16) \|
		(((uint32_t)d[2]) << 8) \| (d[3]));
Maciej Fijalkowski internals: move the bitmanipulation routines into its own file...	r29444	}

		static inline int16_t getbeint16(const char *c)
		{
		const unsigned char d = (const unsigned char )c;

Augie Fackler bitmanipulation: reformat with clang-format...	r34698	return ((d[0] << 8) \| (d[1]));
Maciej Fijalkowski internals: move the bitmanipulation routines into its own file...	r29444	}

		static inline uint16_t getbeuint16(const char *c)
		{
		const unsigned char d = (const unsigned char )c;

Augie Fackler bitmanipulation: reformat with clang-format...	r34698	return ((d[0] << 8) \| (d[1]));
Maciej Fijalkowski internals: move the bitmanipulation routines into its own file...	r29444	}

		static inline void putbe32(uint32_t x, char *c)
		{
		c[0] = (x >> 24) & 0xff;
		c[1] = (x >> 16) & 0xff;
		c[2] = (x >> 8) & 0xff;
Augie Fackler bitmanipulation: reformat with clang-format...	r34698	c[3] = (x)&0xff;
Maciej Fijalkowski internals: move the bitmanipulation routines into its own file...	r29444	}

		static inline double getbefloat64(const char *c)
		{
		const unsigned char d = (const unsigned char )c;
		double ret;
		int i;
		uint64_t t = 0;
		for (i = 0; i < 8; i++) {
Augie Fackler bitmanipulation: reformat with clang-format...	r34698	t = (t << 8) + d[i];
Maciej Fijalkowski internals: move the bitmanipulation routines into its own file...	r29444	}
		memcpy(&ret, &t, sizeof(t));
		return ret;
		}

		#endif