#include "lib/trace.h"
#include "lib/memory.h"
#include "lib/string.h"
#include "lib/misc.h"
#include "lib/buf.h"
#include "fid/fid.h"
#include "fop/fom.h"
#include "stob/io.h"
#include "iscservice/isc.h"
#include "util.h"
#include "common.h"
#include "libdemo.h"
#include "libdemo_xc.h"

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Enumerations
enum	op { MIN, MAX }

Functions
static bool	is_valid_string (struct m0_buf *in)

int	hello_world (struct m0_buf in, struct m0_buf out, struct m0_isc_comp_private comp_data, int rc)

int	launch_io (struct m0_isc_comp_private pdata, struct m0_buf in, int *rc)

int	compute_minmax (enum op op, struct m0_isc_comp_private pdata, struct m0_buf out, int *rc)

int	do_minmax (enum op op, struct m0_buf in, struct m0_buf out, struct m0_isc_comp_private data, int rc)

int	comp_min (struct m0_buf in, struct m0_buf out, struct m0_isc_comp_private comp_data, int rc)

int	comp_max (struct m0_buf in, struct m0_buf out, struct m0_isc_comp_private comp_data, int rc)

static void	comp_reg (const char f_name, int(ftn)(struct m0_buf arg_in, struct m0_buf args_out, struct m0_isc_comp_private comp_data, int rc))

void	motr_lib_init (void)

Enumeration Type Documentation

◆ op

enum op

Enumerator
MIN
MAX

Definition at line 64 of file libdemo.c.

Function Documentation

◆ comp_max()

int comp_max	(	struct m0_buf *	in,
		struct m0_buf *	out,
		struct m0_isc_comp_private *	comp_data,
		int *	rc
	)

Definition at line 228 of file libdemo.c.

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◆ comp_min()

int comp_min	(	struct m0_buf *	in,
		struct m0_buf *	out,
		struct m0_isc_comp_private *	comp_data,
		int *	rc
	)

Compute minimum value in the unit data.

The computation function interface is defined at isc.h: the arguments and result are xcoded at and buffers, contains private data for the computation which is preserved between the two calls of this function (before reading the data from the storage device and after the read is finished). contains the result of the computation.

Returns: M0_FSO_WAIT after read I/O is started (rc should be == -EAGAIN also); M0_FSO_AGAIN after the computation is complete

Definition at line 222 of file libdemo.c.

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◆ comp_reg()

static void comp_reg	(	const char *	f_name,
		int()(struct m0_buf arg_in, struct m0_buf args_out, struct m0_isc_comp_private comp_data, int *rc)	ftn
	)

static

Definition at line 234 of file libdemo.c.

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◆ compute_minmax()

int compute_minmax	(	enum op	op,
		struct m0_isc_comp_private *	pdata,
		struct m0_buf *	out,
		int *	rc
	)

Definition at line 94 of file libdemo.c.

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◆ do_minmax()

int do_minmax	(	enum op	op,
		struct m0_buf *	in,
		struct m0_buf *	out,
		struct m0_isc_comp_private *	data,
		int *	rc
	)

Do the computation of min/max.

This function is called two times by the ISC-implementation. The 1st time we start the I/O to read the data from the object unit, and return M0_FSO_WAIT and -EAGAIN in rc argument as an indication that the function should be called again when the data is ready. When I/O is complete and the data is ready, the function is called again so we can actually do the computation.

Definition at line 183 of file libdemo.c.

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