nv2_common.c File Reference

#include "NeovisionII/nv2_common.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

Include dependency graph for nv2_common.c:

Go to the source code of this file.

Functions
uint32_t	nv2_pixel_type_bytes_per_pixel (enum nv2_pixel_type typ)
	Get the number of bytes used per pixel of a given type.
void	nv2_image_patch_init_empty (struct nv2_image_patch *p)
	Initialize with the current protocol version, and zeros elsewhere.
void	nv2_image_patch_destroy (struct nv2_image_patch *p)
	Free the data array associated with p, and reinitialize to an empty state.
void	nv2_image_patch_set_training_label (struct nv2_image_patch *p, const char *label)
	Copy a training label into the image patch.
void	nv2_image_patch_set_remote_command (struct nv2_image_patch *p, const char *command)
	Copy a remote command into the image patch.
void	nv2_patch_label_init_empty (struct nv2_patch_label *l)
	Initialize with the current protocol version, and zeros elsewhere.
void	nv2_fatal_impl (const char *file, int line, const char *function, const char *what)
	Helper for nv2_fatal.
void	nv2_warn_impl (const char *file, int line, const char *function, const char *what)
	Helper for nv2_warn.
size_t	nv2_robust_write (int fd, const void *const data, size_t const nbytes)
	Keep doing write() calls until either all the bytes are written or an error occurs.
size_t	nv2_robust_read (int fd, void *buf, size_t nbytes, int *nchunks_return)
	Keep doing read() calls until either all the bytes are read or an error occurs.

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Detailed Description

Definition in file nv2_common.c.

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Function Documentation

void nv2_fatal_impl	(	const char *	file,
		int	line,
		const char *	function,
		const char *	what
	)

Helper for nv2_fatal.

Definition at line 113 of file nv2_common.c.

void nv2_image_patch_destroy

(

struct nv2_image_patch *

p

)

Free the data array associated with p, and reinitialize to an empty state.

Definition at line 77 of file nv2_common.c.

References nv2_image_patch_init_empty().

Referenced by nv2_label_reader_destroy(), nv2_label_reader_send_patch(), nv2_label_reader_send_patch_sync(), and nv2_label_server_destroy().

void nv2_image_patch_init_empty

(

struct nv2_image_patch *

p

)

Initialize with the current protocol version, and zeros elsewhere.

This function does NOT free any data associated with p->data; it is up to the caller to do that (if necessary) before calling this function.

Definition at line 64 of file nv2_common.c.

References NV2_PATCH_PROTOCOL_VERSION.

Referenced by nv2_image_patch_destroy(), nv2_label_reader_create(), nv2_label_reader_send_patch(), nv2_label_reader_send_patch_sync(), nv2_label_server_create(), and nv2_label_server_get_current_patch().

void nv2_image_patch_set_remote_command	(	struct nv2_image_patch *	p,
		const char *	command
	)

Copy a remote command into the image patch.

Definition at line 94 of file nv2_common.c.

void nv2_image_patch_set_training_label	(	struct nv2_image_patch *	p,
		const char *	label
	)

Copy a training label into the image patch.

Definition at line 85 of file nv2_common.c.

void nv2_patch_label_init_empty

(

struct nv2_patch_label *

l

)

Initialize with the current protocol version, and zeros elsewhere.

Definition at line 103 of file nv2_common.c.

References nv2_patch_label::confidence, and NV2_LABEL_PROTOCOL_VERSION.

Referenced by nv2_label_reader_create(), and nv2_label_reader_get_current_label().

uint32_t nv2_pixel_type_bytes_per_pixel

(

enum nv2_pixel_type

typ

)

Get the number of bytes used per pixel of a given type.

Definition at line 49 of file nv2_common.c.

References nv2_fatal.

Referenced by nv2_label_reader_send_patch_sync().

size_t nv2_robust_read	(	int	fd,
		void *	buf,
		size_t	nbytes,
		int *	nchunks
	)

Keep doing read() calls until either all the bytes are read or an error occurs.

Returns the number of bytes read; if this number is less than the number of requested bytes (nbytes), then it means that some error occurred

Parameters:

nchunks

if not null, then the total number of read() system calls performed will be returned through this pointer

Definition at line 170 of file nv2_common.c.

size_t nv2_robust_write	(	int	fd,
		const void *	data,
		size_t	nbytes
	)

Keep doing write() calls until either all the bytes are written or an error occurs.

Returns the number of bytes written; if this number is less than the number of requested bytes (nbytes), then it means that some error occurred

Definition at line 136 of file nv2_common.c.

Referenced by nv2_label_reader_send_patch_sync(), and nv2_label_server_send_label().

void nv2_warn_impl	(	const char *	file,
		int	line,
		const char *	function,
		const char *	what
	)

Helper for nv2_warn.

Definition at line 125 of file nv2_common.c.