upipe/uprobe_output.h header reference

probe dealing with events having consequences on the output pipe More

• upipe/uprobe.h
• upipe/uprobe_helper_uprobe.h

• struct uprobe_output

• struct uprobe * uprobe_output_alloc(struct uprobe *next)
• void uprobe_output_clean(struct uprobe_output *uprobe_output)
• struct uprobe * uprobe_output_init(struct uprobe_output *uprobe_output, struct uprobe *next)

In particular, it catches the new_flow_def event, and calls upipe_set_flow_def on the output. If it returns an error, the output is cleared and the event is forwarded to higher-level probes.

It also catches the new_flow_format event, and calls upipe_amend_flow_format on the output, so that it can tune the parameters of the new ubuf manager (alignment, prepending and appending). The event is then always forwarded to higher-level probes.

This macro is declared in upipe/uprobe_output.h source file, line 40.

This struct is declared in upipe/uprobe_output.h source file, line 53.

This struct is a super-set of the uprobe structure with additional local members (or not).

This function is declared in upipe/uprobe_output.h source file, line 80.

This function allocates a new uprobe output structure.

Parameters list:

• next: next probe to test if this one doesn't catch the event

The return value is pointer to uprobe, or NULL in case of error

This function is declared in upipe/uprobe_output.h source file, line 73.

This function cleans a uprobe output structure.

Parameters list:

• uprobe_output: structure to clean

This function is declared in upipe/uprobe_output.h source file, line 67.

This function initializes an already allocated uprobe output structure.

Parameters list:

• uprobe_output: pointer to the already allocated structure
• next: next probe to test if this one doesn't catch the event

The return value is pointer to uprobe, or NULL in case of error

This function is for internal use only.

This function is declared in UPROBE_HELPER_UPROBE function like macro expansion, line 18 in upipe/uprobe_output.h source file, line 58.

This function returns the private uprobe_output structure.

Parameters list:

• uprobe: public description structure of the probe

The return value is pointer to the private uprobe_output structure

This function is for internal use only.

This function is declared in UPROBE_HELPER_UPROBE function like macro expansion, line 8 in upipe/uprobe_output.h source file, line 58.

This function returns the public uprobe structure.

Parameters list:

• uprobe_output: pointer to the private uprobe_output structure

The return value is pointer to the public uprobe structure